Shop Peterbilt 330, 335 & 337 Brake Chambers & Acc.

Peterbilt 330/335/337 Brake Chambers & Acc.

Keep your Peterbilt 330/335/337's brakes in top condition with our wide range of brake chambers and accessories! From long-stroke chambers for better-stopping power to diaphragms, slack adjusters, and rubber hoses, we've got everything you need for safe, reliable braking. Add a personal touch with chrome fittings or custom shifter knobs. Perfect for pros and enthusiasts alike, these top-quality parts ensure your rig is always road-ready! Remember, brake chambers are crucial for linking your Peterbilt's air brake system with the actual braking mechanisms on the wheels. When brake chambers get worn out, there's usually uneven braking across the wheels which causes excessive heating in the brakes, making them fade faster and reducing their efficiency. See? This is why finding a quality replacement brake chamber is important for any owner-operator who wants to keep their Peterbilt running safely and efficiently for years to come.

Frequently Asked Questions About Peterbilt 330/335/337 Brake Chambers & Acc.

Will these brake chambers fit my specific year model Peterbilt 330, 335, or 337?

Most brake chambers for Peterbilt 330/335/337 models are designed to fit trucks manufactured from 2005 to present. However, there can be variations based on your truck's brake system configuration (air disc vs. drum brakes) and axle specifications. We recommend checking your existing chamber's part number or contacting us with your OEM to ensure proper fitment. Key measurements to verify include the mounting bolt pattern, pushrod length, and port size.

What's the difference between Type 20, Type 24, and Type 30 brake chambers?

The type number refers to the effective area of the diaphragm in square inches, which determines the force output. Type 20 chambers are typically used on front axles, providing adequate stopping power with good steering control. Type 24 and Type 30 chambers are commonly found on rear axles where more braking force is needed. Your Peterbilt's GAWR (Gross Axle Weight Rating) determines which type you need - using the wrong size can result in poor braking performance or premature wear.

Can I replace just one brake chamber, or should I replace them in pairs?

While it's possible to replace a single failed chamber, we strongly recommend replacing brake chambers in axle pairs (both left and right sides). Mismatched chambers can cause uneven braking, vehicle pull, and accelerated wear on other brake components. This is especially critical on steer axles where uneven braking forces can affect vehicle control. The cost difference is minimal compared to the safety and performance benefits of paired replacement.

What tools and skills are needed for brake chamber installation?

Brake chamber replacement requires basic air brake system knowledge and tools including: cage bolt tools, appropriate wrenches (typically 3/4" and 7/8"), thread sealant, and a way to safely support the vehicle. The job involves working with compressed air systems and spring-loaded components that can cause serious injury if mishandled. Most installations take 30-45 minutes per chamber for experienced technicians. If you're not certified in air brake service, we recommend professional installation for safety reasons.

How do I know if I need standard or long-stroke brake chambers?

Long-stroke chambers provide additional pushrod travel (typically 2.5" to 3" vs. standard 2" travel) and are required on many newer Peterbilt models to meet federal braking standards. Check your existing chambers for marking that indicate "LS" or "Long Stroke," or measure the pushrod travel at full application. Using standard chambers where long-stroke are required will result in inadequate braking and potential DOT violations. Your Peterbilt's door jamb sticker or maintenance manual will specify which type your vehicle requires.