29519114 Washer Allison spare parts

29519114 Washer Allison spare parts

The 29519114 gasket is an OE-grade precision sealing component specifically developed for Allison 3000/4000 series (3000HS/3200HS/4000HS/4500HS/ORS) heavy-duty automatic transmissions. It is an indispensable basic component in the transmission sealing system. Widely used in heavy-duty equipment equipped with this series of transmissions, such as heavy-duty trucks, mining dump trucks, port tractors, construction machinery, and oilfield special vehicles, it is crucial for sealing key points such as the transmission main housing mating surface, torque converter housing interface, three-way valve, valve body assembly, and retarder control valve body. It performs the core functions of sealing against leakage, dust, and vibration damping. Directly connecting to the sealing grooves and mounting surfaces of various components, it precisely blocks transmission hydraulic oil leakage, prevents external dust and impurities from entering internal components, and avoids problems such as transmission oil contamination, component wear, and hydraulic system failures caused by seal failure, thus extending the overall service life and maintenance cycle of the transmission.

Core technical parameters:

– Product Model: 29519114
– Material Specifications: Main body (flexible graphite composite material, fluororubber/FKM optional), built-in metal liner (1Cr18Ni9Ti stainless steel); surface polished and corrosion-resistant.
– Operating environment: Operating temperature -40℃~200℃
– Sealing and mechanical properties: Static leakage rate ≤5×10⁻⁷Pa·m³/s, compressive strength ≥20MPa, tensile strength ≥15MPa, elongation at break ≥300%; coefficient of friction ≤0.003.
– Precision and structural parameters: Dimensional tolerance ≤ ±0.02mm, thickness 3.0mm (can be adapted upon request), inner diameter Φ45mm, outer diameter Φ60mm; surface flatness ≤ 0.01mm
– Structural features: flat washer structure (wave washer optional), built-in metal liner to enhance rigidity, and a flexible graphite layer on the surface to improve fit; smooth edges without burrs, pre-drilled positioning grooves for easy installation and positioning, adaptable to various sealing surfaces, and can effectively buffer vibration and fill gaps.
– Compatible Models/Scenarios: Core compatibility with Allison 3000HS/3200HS/4000HS/4500HS/ORS series automatic transmissions, widely used in heavy-duty trucks, heavy-duty mining transportation, frequent start-stop operations in ports, construction machinery, oilfield special vehicles, and other scenarios. It is compatible with key sealing points such as the transmission main housing, torque converter housing, three-way valve, and valve body, and meets the needs of transmission overhaul, seal replacement, and hydraulic system maintenance.
– Service life: ≥12,000 hours under normal heavy-load conditions

The 29519114 gasket, with its precise original factory fit, high sealing performance, and long-lasting durability, has become the core preferred component for the repair and overhaul of the sealing system of Allison 3000/4000 series heavy-duty transmissions. We strictly control the entire production process; each product undergoes full dimensional accuracy inspection, oil resistance sealing test, pressure test, and high and low temperature aging test to ensure compliance with original factory standards, GB/T 97.1-2002, GB/T 19066.3-2009 standards, and industrial usage requirements. We also provide comprehensive after-sales support and standardized packaging for bulk purchases, categorized by sealing point for easy and quick access. Suitable for repair shops, transmission overhaul centers, and heavy-duty vehicle fleets requiring bulk use, it helps heavy-duty equipment transmissions achieve long-term stable and reliable sealing operation.

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