29546155 Sealring,C1Piston,178.8mmID Allison spare parts

29546155 Sealring,C1Piston,178.8mmID Allison spare parts

The Allison 29546155 Sealring is a dedicated rotary seal ring designed specifically for the C1 clutch piston of Allison automatic transmissions. With a precise inner diameter of 178.8mm, it strictly matches the original factory dimensions and structure. It is used for sealing the hydraulic oil circuit of the clutch piston to ensure stable pressure transmission. It is a core sealing component for solving transmission slippage, pressure leakage, shift jerking, and weak clutch engagement.
This product is made of oil-resistant and high-temperature resistant fluororubber composite material, with excellent resistance to compression set. It maintains a long-term seal under heavy load, high temperature and continuous shifting conditions, without softening, cracking or leaking, effectively maintaining the working oil pressure of the clutch and extending the overhaul cycle of the transmission.

Core technical parameters:

-Part Number: 29546155
-Product Name: Sealring, C1 Piston, 178.8mm ID
-Applicable location: C1 Clutch piston seal
-Inner diameter: 178.8 mm (original factory standard)
-Material: Fluororubber / High-performance oil-resistant rubber
-Operating temperature: -40℃ ~ 170℃
-Applicable medium: Allison dedicated transmission fluid
-Seal type: Dynamic rotary seal
-Precision standard: OEM original tolerance, seamless fit

Product advantages:

-Original factory size 178.8mm inner diameter, direct mounting without adjustment.
-C1 piston-specific seal ensures stable pressure and prevents pressure leakage.
-Oil-resistant and anti-aging, leak-proof under high-temperature conditions
-Effectively improves clutch slippage, shift delay, and insufficient power.
-Essential seals for major overhauls, reducing rework and maintenance costs.
-Compatible with Allison 3000/4000, 4000RDS, HD/B500 and other series gearboxes.

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