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Mack RW Superliner Trucks

Mack RW Superliner semi trucks are a regular sight on the highway so make yours stands out with custom, chrome, and aftermarket parts from 4 State Trucks. When you drive a Mack RW Superliner semi truck, you're going to enjoy a fuel efficient, safe ride in a truck that's rated as one of the best in the industry. Make your rig your own - whether you need aftermarket or chrome parts like bumpers, exhaust, seating, steering or fenders, 4 State Trucks has you covered. Hit the open road in style and comfort with the best custom gear for your Mack.
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  • Quantity
  • Price
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  • BESTfit Cummins Water Pump Short Shaft For Cummins L10/M11 Engine Replaces 4087, 4955706,RW4077

    BESTfit Cummins Water Pump Short Shaft For Cummins L10/M11 Engine Replaces 4087, 4955706,RW4077

    BESTFIT TRUCK PARTS

    $296.99
    Water Pump Short Shaft By BESTfit Replaces 4087, 4955706,RW4077 Fits Cummins L10/M11 EngineUpgrade your engine cooling system with the BESTfit Cummins Water Pump Short Shaft, a direct replacement for...
    29-07120152
    SKU:
    29-07120152
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $296.99
    Qty in Cart: 0
    Price:
    $296.99
    Subtotal:
  • BESTfit Cummins Water Pump W/ 88mm Pulley For Cummins 8.3L & 8.9L Engine Replaces 4089952, 5579022, 6410397

    BESTfit Cummins Water Pump W/ 88mm Pulley For Cummins 8.3L & 8.9L Engine Replaces 4089952, 5579022, 6410397

    BESTFIT TRUCK PARTS

    $166.99
    Water Pump W/ 88mm Pulley By BESTfit Replaces 4089952, 5579022, 6410397 Fits Cummins 8.3L & 8.9L EngineEnhance your cooling system with the BESTfit Cummins Water Pump with 88mm pulley, a direct...
    29-07120141
    SKU:
    29-07120141
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $166.99
    Qty in Cart: 0
    Price:
    $166.99
    Subtotal:
  • BESTfit Cummins Water Pump For Dodge Ram 2500 Replaces 3285414, 4089731, 71100619

    BESTfit Cummins Water Pump For Dodge Ram 2500 Replaces 3285414, 4089731, 71100619

    BESTFIT TRUCK PARTS

    $99.99
    Water Pump By BESTfit Replaces 3285414, 4089731, 71100619 Fits Dodge Ram 2500Enhance your engine cooling system with the BESTfit Cummins Water Pump, a direct replacement for OEM part numbers 3285414,...
    29-07120151
    SKU:
    29-07120151
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $99.99
    Qty in Cart: 0
    Price:
    $99.99
    Subtotal:
  • BESTfit Cummins Water Pump For Cummins ISX/QSX Engine Replaces 3691299, 3692580, 4393548

    BESTfit Cummins Water Pump For Cummins ISX/QSX Engine Replaces 3691299, 3692580, 4393548

    BESTFIT TRUCK PARTS

    $479.99
    Water Pump By BESTfit Replaces 3691299, 3692580, 4393548 Fits Cummins ISX/QSX EngineUpgrade your engine cooling system with the BESTfit Cummins Water Pump, a direct replacement for OEM part numbers...
    29-07120154
    SKU:
    29-07120154
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $479.99
    Qty in Cart: 0
    Price:
    $479.99
    Subtotal:
  • BESTfit Cummins Water Pump For Cummins 5.9L B-Series 1990-1998 Replaces 99315HD, 4429404, 97083

    BESTfit Cummins Water Pump For Cummins 5.9L B-Series 1990-1998 Replaces 99315HD, 4429404, 97083

    BESTFIT TRUCK PARTS

    $79.99
    Water Pump By BESTfit Replaces 99315HD, 4429404, 97083 Fits Cummins 5.9L B-Series 1990-1998Upgrade your engine cooling system with the BESTfit Cummins Water Pump, a direct replacement for OEM part...
    29-07120148
    SKU:
    29-07120148
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $79.99
    Qty in Cart: 0
    Price:
    $79.99
    Subtotal:
  • BESTfit Cummins Water Pump For Cummins 8.3L ISC/ISL/QSL Replaces 3802973, 6901245, A77579

    BESTfit Cummins Water Pump For Cummins 8.3L ISC/ISL/QSL Replaces 3802973, 6901245, A77579

    BESTFIT TRUCK PARTS

    $121.99
    Water Pump By BESTfit Replaces 3802973, 6901245, A77579 Fits Cummins 8.3L ISC/ISL/QSLUpgrade your engine cooling system with the BESTfit Cummins Water Pump, a direct replacement for OEM part numbers...
    29-07120147
    SKU:
    29-07120147
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $121.99
    Qty in Cart: 0
    Price:
    $121.99
    Subtotal:
  • BESTfit Cummins EGR Cooler, Replaces 4352253, 5529388, 5566887 For Cummins

    BESTfit Cummins EGR Cooler, Replaces 4352253, 5529388, 5566887 For Cummins

    BESTFIT TRUCK PARTS

    $2,317.99
    EGR Cooler By BESTfit Replaces 4352253, 5529388, 5566887 Fits CumminsUpgrade your emissions system with the BESTfit Cummins EGR Cooler, a direct replacement for OEM part numbers 4352253, 5529388, and...
    29-07110014
    SKU:
    29-07110014
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $2,317.99
    Qty in Cart: 0
    Price:
    $2,317.99
    Subtotal:
  • BESTfit CAT Water Pump, Replaces 2243236, 3145155, 6031668 For Caterpillar C15 Acert Engine

    BESTfit CAT Water Pump, Replaces 2243236, 3145155, 6031668 For Caterpillar C15 Acert Engine

    BESTFIT TRUCK PARTS

    $585.99
    Water Pump By BESTfit Replaces 2243236, 3145155, 6031668 Fits Caterpillar C15 Acert EngineUpgrade your engine cooling system with the BESTfit CAT Water Pump, a direct replacement for OEM part numbers...
    29-07120150
    SKU:
    29-07120150
    Product Type:
    Engine Parts
    Style Options:
    Caterpillar
    Make:
    Universal Items
    $585.99
    Qty in Cart: 0
    Price:
    $585.99
    Subtotal:
  • BESTfit Cummins Water Pump W/ 88 mm Pulley For Dodge Ram 2500 Replaces 2852114R, 3959229, 5473172

    BESTfit Cummins Water Pump W/ 88 mm Pulley For Dodge Ram 2500 Replaces 2852114R, 3959229, 5473172

    BESTFIT TRUCK PARTS

    $55.99
    Water Pump W/ 88 mm Pulley By BESTfit Replaces 2852114R, 3959229, 5473172 Fits Dodge Ram 2500Enhance your engine cooling system with the BESTfit Cummins Water Pump with 88 mm pulley, a direct...
    29-07120144
    SKU:
    29-07120144
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $55.99
    Qty in Cart: 0
    Price:
    $55.99
    Subtotal:
  • BESTfit Cummins Sensor For Cummins Replaces 4384564, 5EL048, A054U491

    BESTfit Cummins Sensor For Cummins Replaces 4384564, 5EL048, A054U491

    BESTFIT TRUCK PARTS

    $504.99
    Sensor By BESTfit Replaces 4384564, 5EL048, A054U491 Fits CumminsUpgrade your engine monitoring system with the BESTfit Cummins Sensor, a direct replacement for OEM part numbers 4384564, 5EL048, and...
    29-07100084
    SKU:
    29-07100084
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $504.99
    Qty in Cart: 0
    Price:
    $504.99
    Subtotal:
  • BESTfit Cummins Water Pump W/ 110 mm Pulley For Cummins 8.3L ISC/ISL/QSL Engine Replaces 19701979, 5346205, 6410399

    BESTfit Cummins Water Pump W/ 110 mm Pulley For Cummins 8.3L ISC/ISL/QSL Engine Replaces 19701979, 5346205, 6410399

    BESTFIT TRUCK PARTS

    $216.99
    Water Pump W/ 110 mm Pulley By BESTfit Replaces 19701979, 5346205, 6410399 Fits Cummins 8.3L ISC/ISL/QSL EngineEnhance your engine cooling system with the BESTfit Cummins Water Pump with 110 mm...
    29-07120146
    SKU:
    29-07120146
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $216.99
    Qty in Cart: 0
    Price:
    $216.99
    Subtotal:
  • BESTfit Volvo/Mack Water Pump For Volvo/Mack D11, D13 & D16 Engine Replaces 20464403, 22902433, 64506221

    BESTfit Volvo/Mack Water Pump For Volvo/Mack D11, D13 & D16 Engine Replaces 20464403, 22902433, 64506221

    BESTFIT TRUCK PARTS

    $190.99
    Water Pump By BESTfit Replaces 20464403, 22902433, 64506221 Fits Volvo/Mack D11, D13 & D16 EngineEnhance your engine cooling system with the BESTfit Volvo/Mack Water Pump, a direct replacement for...
    29-07120143
    SKU:
    29-07120143
    Style Options:
    Detroit
    Product Type:
    Engine Parts
    Make:
    Mack
    Make:
    Volvo
    $190.99
    Qty in Cart: 0
    Price:
    $190.99
    Subtotal:
  • BESTfit Cummins Water Pump W/ 96.5mm Pulley For Cummins ISC/ISL/QSL Engine Replaces 182092, 3959582

    BESTfit Cummins Water Pump W/ 96.5mm Pulley For Cummins ISC/ISL/QSL Engine Replaces 182092, 3959582

    BESTFIT TRUCK PARTS

    $158.99
    Water Pump W/ 96.5mm Pulley By BESTfit Replaces 182092, 3959582 Fits Cummins ISC/ISL/QSL EngineEnhance your cooling system with the BESTfit Cummins Water Pump with 96.5mm pulley, a direct replacement...
    29-07120140
    SKU:
    29-07120140
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $158.99
    Qty in Cart: 0
    Price:
    $158.99
    Subtotal:
  • BESTfit Detroit Diesel Temperature Sensor For Detroit Engines Replaces 2120200002, DDEA6805401917, SKT283

    BESTfit Detroit Diesel Temperature Sensor For Detroit Engines Replaces 2120200002, DDEA6805401917, SKT283

    BESTFIT TRUCK PARTS

    $86.99
    Temperature Sensor By BESTfit Replaces 2120200002, DDEA6805401917, SKT283 Fits Detroit EnginesUpgrade your engine monitoring system with the BESTfit Detroit Diesel Temperature Sensor, a direct...
    29-07100080
    SKU:
    29-07100080
    Style Options:
    Detroit
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $86.99
    Qty in Cart: 0
    Price:
    $86.99
    Subtotal:
  • BESTfit Cummins Water Pump W/ 110 mm Pulley For Cummins 8.3L ISC/ISL/QSL Replaces 3286293, 4086, G4089647

    BESTfit Cummins Water Pump W/ 110 mm Pulley For Cummins 8.3L ISC/ISL/QSL Replaces 3286293, 4086, G4089647

    BESTFIT TRUCK PARTS

    $216.99
    Water Pump W/ 110 mm Pulley By BESTfit Replaces 3286293, 4086, G4089647 Fits Cummins 8.3L ISC/ISL/QSLEnhance your engine cooling system with the BESTfit Cummins Water Pump with 110 mm pulley, a...
    29-07120142
    SKU:
    29-07120142
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $216.99
    Qty in Cart: 0
    Price:
    $216.99
    Subtotal:
  • BESTfit Cummins EGR Cooler For Cummins Replaces 4955922, 4988884, 904333

    BESTfit Cummins EGR Cooler For Cummins Replaces 4955922, 4988884, 904333

    BESTFIT TRUCK PARTS

    $1,071.99
    EGR Cooler By BESTfit Replaces 4955922, 4988884, 904333 Fits CumminsEnhance your emissions system with the BESTfit Cummins EGR Cooler, a direct replacement for OEM part numbers 4955922, 4988884, and...
    29-07110016
    SKU:
    29-07110016
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,071.99
    Qty in Cart: 0
    Price:
    $1,071.99
    Subtotal:
  • BESTfit Cummins Temperature Sensor For Cummins Replaces 2872469, 4984757, SKT264

    BESTfit Cummins Temperature Sensor For Cummins Replaces 2872469, 4984757, SKT264

    BESTFIT TRUCK PARTS

    $177.99
    Temperature Sensor By BESTfit Replaces 2872469, 4984757, SKT264 Fits CumminsUpgrade your engine monitoring system with the BESTfit Cummins Temperature Sensor, a direct replacement for OEM part...
    29-07100087
    SKU:
    29-07100087
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $177.99
    Qty in Cart: 0
    Price:
    $177.99
    Subtotal:
  • BESTfit Detroit Diesel Temperature Sensor For Detroit Engines Replaces 04320774, 10031028, 2120200003

    BESTfit Detroit Diesel Temperature Sensor For Detroit Engines Replaces 04320774, 10031028, 2120200003

    BESTFIT TRUCK PARTS

    $73.99
    Detroit Diesel Temperature Sensor By BESTfit Replaces 04320774, 10031028, 2120200003 Fits Detroit EnginesUpgrade your engine monitoring system with the BESTfit Detroit Diesel Temperature Sensor, a...
    29-07100076
    SKU:
    29-07100076
    Product Type:
    Engine Parts
    Style Options:
    Detroit
    Make:
    Universal Items
    $73.99
    Qty in Cart: 0
    Price:
    $73.99
    Subtotal:
  • BESTfit Cummins Sensor For Cummins Replaces S27076, 4921729, 4903035

    BESTfit Cummins Sensor For Cummins Replaces S27076, 4921729, 4903035

    BESTFIT TRUCK PARTS

    $403.99
    Sensor By BESTfit Replaces S27076, 4921729, 4903035 Fits CumminsEnhance your engine emissions system with the BESTfit Cummins EGR Differential Pressure Sensor, a direct replacement for OEM part...
    29-07110015
    SKU:
    29-07110015
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $403.99
    Qty in Cart: 0
    Price:
    $403.99
    Subtotal:
  • BESTfit Cummins Sensor For Cummins Replaces 4384566, 5654170, SKT1307

    BESTfit Cummins Sensor For Cummins Replaces 4384566, 5654170, SKT1307

    BESTFIT TRUCK PARTS

    $529.99
    Sensor By BESTfit Replaces 4384566, 5654170, SKT1307 Fits CumminsUpgrade your engine monitoring system with the BESTfit Cummins Sensor, a direct replacement for OEM part numbers 4384566, 5654170, and...
    29-07100086
    SKU:
    29-07100086
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $529.99
    Qty in Cart: 0
    Price:
    $529.99
    Subtotal:
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Adding your products to cart

Upgrade your Mack RW Superliner to the next level of customization with aftermarket medium-duty truck parts that deliver power, performance, and personality. Enhacne your rig with high-performance exhaust kits, engines, reinforced suspension, or durable drivetrain components to tackle heavy hauls with ease. You can dominate the road with chrome accessories, custom bumpers, and sleek fenders that turn heads while staying practical. Aftermarket options also let you replace, enhance, and customize faster and more affordably than OEM parts. Keep your Superliner rolling strong, looking bold, and working harder for years on end with parts built to perform and designed to impress. Whether you need more torque, better steering control, or a more comfortable interior, our lineup of Mack RW Superliner truck parts can get you what you need!

Frequently Asked Questions About Mack RW Superliner Trucks

What years and models are compatible with Mack RW Superliner parts?

Mack RW Superliner parts are specifically designed for RW model trucks manufactured from 1985 to 1993. These parts are compatible with all RW configurations including RW600, RW700, and RW800 series. Some parts may also fit early 2000s RD models, but we recommend verifying your OEM and model year before ordering. If you're unsure about compatibility, contact our support team with your truck's serial number for exact fitment confirmation.

Are aftermarket bumpers as durable as OEM Mack bumpers?

Quality aftermarket bumpers for Mack RW Superliners are typically made from 16-gauge steel or heavy-duty chrome-plated steel, matching or exceeding OEM specifications. The key is choosing reputable manufacturers who use proper welding techniques and corrosion-resistant materials. Look for bumpers with reinforced mounting brackets and proper drainage holes to prevent rust. Many aftermarket options actually offer improved features like additional light mounting points or better aerodynamic designs compared to original equipment.

What tools and expertise do I need to install a replacement bumper?

Installing a Mack RW Superliner bumper requires basic mechanical skills and specific tools including: a socket set (typically 3/4" to 1-1/4"), torque wrench, jack stands or lift access, and potentially a second person for alignment. Most installations take 2-4 hours. Common challenges include aligning mounting holes with frame brackets and managing the bumper's weight (typically 150-250 lbs). We recommend having shop manual torque specifications on hand. Professional installation runs $200-400 if you prefer expert assistance.

What finish options are available and which holds up best?

Mack RW Superliner bumpers come in three main finishes: chrome-plated steel, polished stainless steel, and painted steel. Chrome offers the classic look but requires regular polishing and can pit in harsh climates. Stainless steel (304 grade) provides the best long-term durability with minimal maintenance but costs 40-60% more. Painted options are most economical and can be color-matched but may need recoating every 3-5 years. For trucks in northern states with road salt exposure, stainless steel or properly undercoated painted bumpers perform best.

Do I need to replace brackets and hardware when installing a new bumper?

While existing brackets can often be reused, we strongly recommend replacing all mounting hardware when installing a new bumper. Original bolts may be corroded, stretched, or have worn threads after years of service. New Grade 8 mounting bolts and brackets are typically sold separately. Inspect your existing brackets for cracks, rust holes, or bent mounting surfaces. Damaged brackets can cause premature bumper failure and safety issues. Complete hardware kits specific to RW models typically cost $75-150 and ensure proper installation.


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