304E,304E2CR,305CCR,305.5E,305.5E2,305.5E2 CR,305E,416D,416E,420D,422E,424D,428D,428E
430D,432D,432E,434E,436,436B,436C,438,438B,438C,438D,442D,442E,444E,906H2,906M,908,908H2,908M
Parts list
|
NO. |
Part Number |
Quantity |
Product Name |
|
|
167-4235 |
|
CYLINDER GP-STEERING -POWER SHIFT |
|
1 |
169-0445 |
1 |
ROD AS |
|
1 |
151-5349 |
2 |
HEAD |
|
|
383-1592 |
1 |
HEAD-HYD CYL-YM |
|
3 |
4J-9225 |
2 |
RING-BACKUP |
|
4 |
175-7895 |
2 |
SEAL-O-RING |
|
5 |
169-0444 |
1 |
CYLINDER AS |
|
6 |
166-5295 |
1 |
SEAL AS |
|
|
166-6033 |
1 |
RING-EXPANDER |
|
|
166-6034 |
1 |
RING-SEAL |
|
7 |
8J-0112 |
1 |
RING-WEAR |
|
8 |
4T-6907 |
2 |
RING-WEAR |
|
9 |
167-2191 |
2 |
SEAL AS-BUFFER |
|
10 |
167-2300 |
2 |
SEAL-U-CUP |
|
11 |
231-3539 |
2 |
SEAL-WIPER |
|
|
|
|
AVAILABLE REPAIR KIT |
|
|
|
|
(S): |
|
|
235-0351 |
1 |
KIT-SEAL |
|
|
|
|
(INCLUDES BACKUP |
|
|
|
|
RINGS,WEAR RINGS, |
|
|
|
|
SEAL AS,BUFFER SEAL |
|
|
|
|
AS,U-CUP SEALS, |
|
|
|
|
O-RING SEALS&WIPER |
|
|
|
|
SEALS) |
|
|
235-0352 |
1 |
KIT-SEAL |
|
|
|
|
(INCLUDES BACKUP |
|
|
|
|
RINGS,WEAR RINGS, |
|
|
|
|
SEAL AS,BUFFER SEAL |
|
|
|
|
AS,U-CUP SEALS, |
|
|
|
|
O-RING SEALS&WIPER |
|
|
|
|
SEALS) |

Product Description
Heavy-Duty 2350352 Axle Steering Cylinder Seal Kit for Caterpillar 416D Backhoe Loader (Fits 1647174)
Regain razor-sharp alignment and eliminate erratic frontend handling in your loading operations with Toparts' premium 2350352 steering cylinder service repair kit. Specifically precision-engineered for the 1647174 double-acting steering cylinder integrated into Caterpillar 416D backhoe loader axle assemblies, this overhaul kit is structurally optimized to absorb rapid fluid direction reversals and severe terrain shockwaves.
The Toparts Content Innovation: Why This Kit Survives Frontend Shock
Unlike boom or bucket cylinders that endure linear structural stress, backhoe steering cylinders are mounted directly on the front axle. They are constantly subjected to merciless lateral runout, erratic tire vibrations from rocky grounds, and aggressive steering column pressure spikes. Standard aftermarket seals easily twist or experience lip tearing under this continuous twisting micro-movement, leading to steering drift. At Toparts, we redefine the 2350352 kit through component-level resilience:
Anti-Twist P6000 Polyurethane U-Cups: Our rod seals are molded from upgraded P6000 PU with an optimized cross-sectional geometry. This provides 45% higher tensile memory, preventing the seal from twisting or rolling inside the 1647174 cylinder groove during fast, full-lock steering maneuvers.
Dual-Edge Heavy Excluder Wiper: The front axle is swimming in abrasive silt, concrete slurry, and sharp grit. Our kit features a highly aggressive double-lip scraper that completely shears off dried mud crusts from the steering rod before they can scoring the internal chrome plating.
High-Frequency Fluid Dampening Buffer: Includes specialized PTFE step seals combined with premium NBR o-rings that act as a microscopic shock absorber, flattening out dangerous pressure spikes caused when the front tires strike heavy rocks or deep ruts.
Zero-Degradation Chemical Resistance: All elastomeric compounds are chemically treated to resist modern high-velocity hydraulic fluids, preventing the premature hardening and lip-cracking that commonly causes internal bypass and sluggish wheel response.
Technical Specifications:
Brand Compatibility: Caterpillar (CAT)
Equipment Application: Backhoe Loaders (D-Series Industrial Utility)
Target Machine Match: CAT 416D
Seal Kit Part Number (P/N): 2350352 / 235-352
Cylinder Assembly Cross-Reference: 1647174 / 164-7174
Component Type: Front Axle Double-Acting Steering Cylinder Seals
Material Compound Matrix: Heavy-Duty P6000 PU, High-Fluorine NBR, Reinforced PTFE + Bronze
Condition: 100% Brand New Industrial-Grade Aftermarket
Tag:Backhoe Loader Hydraulic Seals,Hydraulic Cylinder Seal Kit,Caterpillar Backhoe Loaders Seal Kit

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