Engineered for Seamless Shifting: The SP 127200 2-Piece Clutch Brake. This is one genuine SP 127200 Clutch Brake, a critical friction component for the engagement of low gears in heavy-duty commercial truck manual transmissions. This two-piece, hinged design is engineered to slow or stop the transmission input shaft when the clutch pedal is fully pressed. The 127200 clutch brake is a fully formulated, high-efficiency solution that ensures unparalleled shift quality and prevents gear grinding. The two-piece construction is its primary feature, allowing mechanics to easily assemble the part around the 2-inch input shaft during replacement, avoiding major transmission disassembly and reducing vehicle downtime. With an OE-level thickness of 0.45 inches, it delivers the precise friction needed for quick and smooth engagement of first and reverse gears. Ready-to-use, this brake ensures extended life for both the clutch and transmission components. Cross-references of the product: Eton Fuller 127200, Spcer 127200, Haldx BK313, Mertor EB201, Automan 755.CB200TL, and Vlvo 2104127200. The superior design of SP 127200 provides durable friction material, minimizes transmission wear, and is a vital component for consistent and controlled low-gear operation. Characteristics: ⦁ Part Type: Transmission Clutch Brake ⦁ Style: Two-Piece, Hinged ⦁ Spline Diameter (ID): 2.0 inches (50.8 mm) ⦁ Thickness: 0.45 inches (11.4 mm) ⦁ Application: Heavy-Duty Manual Transmission (Low Gears) ⦁ Weight: Approx. 1.0 lbs (0.45 kg)