Mercedes Sprinter Rear Left Brake Caliper – Brembo | VS30 3500 / 3500XD / 4500 | #9074235700 (2019–2023)

A seized or leaking rear brake caliper on a VS30 Sprinter causes uneven braking, premature pad and rotor wear, and — in the case of a caliper that won't release — dragging brakes that create dangerous heat buildup and can cause a fire in extreme cases. This is the Brembo rear left brake caliper for VS30 Sprinter 3500, 3500XD, and 4500 models without an electric park brake, a direct replacement that restores proper clamping force, release, and braking balance on the rear left corner.

What This Part Does

The rear brake caliper is a hydraulic clamping assembly that straddles the brake rotor and houses two metal pistons. When brake pressure is applied, hydraulic fluid from the master cylinder pushes the pistons outward, pressing the brake pads against both sides of the rotor and generating the friction that slows the vehicle. When brake pressure is released, the pistons retract slightly, allowing the rotor to turn freely. On the heavy-duty Sprinter 3500, 3500XD, and 4500 rear axle, the caliper uses a two-piston design sized for the increased stopping loads of a dual-rear-wheel axle configuration. When the caliper's piston seals fail, its slider pins corrode and seize, or its bleeder valve becomes inoperable, braking becomes uneven — causing the van to pull to one side, chewing through pads and rotors on the affected corner, and generating the heat and smell of dragging brakes.

Common Symptoms of a Failing Rear Brake Caliper

• Vehicle pulling to one side during braking — particularly toward the right if the left caliper is dragging
• Uneven brake pad wear — the left rear pads wearing significantly faster than the right
• Heat, burning smell, or smoke from the left rear wheel after driving
• Brake pedal pulsation or vibration when stopping at highway speeds
• Caliper pistons found seized or slider pins corroded and unable to move freely during inspection
• Brake fluid leaking from around the caliper body or bleeder valve

When to Replace

Replace when the caliper is confirmed seized, leaking, or unable to retract properly after brake service. Calipers should be replaced in pairs — left and right rear — to maintain even braking balance. Always replace brake pads and inspect rotors when replacing a caliper, and bleed the brake system to remove any air introduced during the repair.

VS30 3500/3500XD/4500 Specific — VIN Verification Required

This caliper is for VS30 Sprinter 3500, 3500XD, and 4500 models without electric park brake. It is not compatible with VS30 Sprinter 1500 or 2500 rear calipers, models equipped with an electric park brake, or NCV3 Sprinters. Always verify by VIN before ordering. Contact us and we'll confirm fitment before you buy.

Fitment

• 2019–2022 Mercedes-Benz Sprinter 3500 – Rear Left, without electric park brake (VS30)
• 2019–2022 Mercedes-Benz Sprinter 3500XD – Rear Left, without electric park brake (VS30)
• 2019–2023 Mercedes-Benz Sprinter 4500 – Rear Left, without electric park brake (VS30)

✔ Left (driver) side only — right side requires #9074235800
✔ Without electric park brake only — electric park brake models require a different caliper
✔ Replace in pairs with right rear caliper for even braking balance

Part Numbers

• Mercedes OEM: 9074235700 / A9074235700 / 907-423-57-00
• Cross-reference: 907423570080
• Manufacturer: Brembo — F BR 075
• SKU: 9074235700