1-53366073-0 1533660730 Rear Spring Cushion Rubber Rear Left OEM Standard for ISUZU CXZ81 10PE1 6WF1
| Dimensions: | 15 × 15 × 10 Cm | Net Weight: | Approx. 2 Kg / 2.02 Kg |
| Material: | Rubber | Position: | Rear Leaf Spring, Left (LH) |
| Engine Compatibility: | 10PE1 / 6WF1 / 6WF1-T | OEM Part Number: | 1-53366073-0 / 1533660730 |
| Fixing Screw Length: | 50mm | HS Code: | 401699000 |
| High Light: | 1-53366073-0 1533660730 Rear Spring Cushion Rubber,Rear Left Rear Spring Cushion Rubber,OEM Standard Rear Spring Cushion Rubber |
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The Rear Spring Cushion Rubber with OEM numbers 1-53366073-0 / 1533660730 is a verified direct-fit replacement for ISUZU CXZ81, CXZ51K, CYZ51K, and EXZ51K heavy-duty trucks equipped with 10PE1 and 6WF1 diesel engines. This cushion rubber (RUBBER; CUSHION, RR SPR) is installed on the left rear side between the rear leaf spring and the vehicle frame. It absorbs impact loads when the vehicle is fully loaded or driving over bumps, preventing direct contact between the leaf spring and frame while providing vibration damping, noise reduction, and suspension system protection.
The rear spring cushion rubber is continuously subjected to alternating loads, compression deformation, and road impacts. When the rubber ages, cracks, detaches, or loses height, it causes direct leaf spring-to-frame contact, suspension system noise, and reduced driving comfort. Timely replacement restores the suspension system's cushioning performance.
- Real Specification Data: Net weight approximately 2 kg / 2.02 kg. Dimensions: 15 × 15 × 10 cm. Material: Rubber. Position: Rear leaf spring, Left (LH). HS Code: 401699000. Part name: RUBBER; CUSHION, RR SPR.
- Proven Durability: Supplier offers 6-month warranty, MOQ 2 pcs, delivery time 7–15 days, payment terms T/T 30% deposit + 70% before delivery.
- Fitment Confirmed: Standard mounting dimensions, direct replacement design, manufactured to OEM specifications — verified against OEM standard dimensions. Product includes 2 fixing screws, 50 mm length.
- OEM Cross-Reference Verified: Replaces ISUZU OEM numbers 1533660450, 1533660451, 1533660731, 1533660732. Some suppliers also list D-125068 / 1-53366-073-2 as an alternative reference number.
| Part Number | 1-53366073-0 / 1533660730 | Product Name | Rear Spring Cushion Rubber |
|---|---|---|---|
| Car Model | CXZ81 | Engine Model | 10PE1 / 6WF1 |
| Condition | 100% Brand New | Size | Standard |
| Weight | Standard | Origin | China Mainland |
| Main Market | Middle East, Asia, Africa, South America, North America & Europe | Package | Neutral Packing or As Requested |
| Material | High-strength rubber | Cooling Type | Engine coolant circulation |
| Installation | Direct OEM replacement | Quality Standard | OEM equivalent / ISO quality control |
When the rear spring cushion rubber exhibits the following conditions, timely inspection and replacement are required:
- Suspension system noise: "Thumping" or metal impact sounds from the rear suspension over bumps or under full load, caused by aged or detached cushion rubber allowing direct leaf spring-to-frame contact.
- Significantly increased driving bounce: Reduced cushion height or degraded elasticity, unable to effectively absorb road impacts, substantially reduced rear suspension damping and ride comfort.
- Cracked or detached cushion rubber: Cracks, fractures, or detachment of the rubber body from the metal base plate, completely losing cushioning function.
- Leaf spring displacement or accelerated wear: Cushion failure causing abnormal friction between leaf spring and frame, accelerating inter-leaf wear and even risking leaf spring breakage.
- Abnormal vehicle body height: Severe cushion collapse causing reduced rear load capacity, vehicle body tilting, or rear-end sagging.
| Brand | Model | Series | Engine | Note |
|---|---|---|---|---|
| ISUZU | CXZ81 | GIGA | 10PE1 | Rear spring cushion rubber, left |
| ISUZU | CXZ51K | GIGA | 6WF1 / 10PE1 | Rear spring cushion rubber, left |
| ISUZU | CYZ51K | GIGA | 6WF1 / 6WF1-T | Rear spring cushion rubber, left |
| ISUZU | EXZ51K | GIGA | 6WF1 | Rear spring cushion rubber, left |
| ISUZU | CYZ51L | GIGA | 6WF1 | Series reference |
| ISUZU | CYZ52 | GIGA | 6WF1 | Series reference |
| ISUZU | FVR34 | FORWARD 18.0 | 6HK1 | Series reference |
- LH/RH Distinction: This product is the rear left (LH) spring cushion rubber. Right-hand counterpart is 1-53366072-0 / 1533660720 (including 1-53366072-1, 1-53366072-2 variants). Confirm required position before ordering.
- Model Confirmation: This cushion primarily fits CXZ81 (10PE1) and GIGA series models including CXZ51K, CYZ51K, EXZ51K. Variations may exist across different model years or configurations. Verify original cushion number before installation.
- Pre-Installation Verification: Please provide VIN or original cushion number for precise fitment confirmation.
| Feature | Benefit + Verification Signal |
|---|---|
| Rubber Construction | Premium rubber material provides effective cushioning and damping performance, withstanding high loads and road impacts in heavy-duty truck suspension systems — per dutch.japanesetruckspareparts.com product material specification |
| OEM Standard Dimensions | Direct replacement installation without suspension system or frame mounting position modification — verified against OEM standard dimensions |
| Includes Fixing Screws | Comes with 2 pcs 50 mm fixing screws, convenient installation without additional fastener procurement — per italian.isuzu-autoparts.com product description |
| Left-Side Dedicated Design | Specifically designed for rear left leaf spring mounting position, precise fit — per product mounting position specification |
| 6-Month Warranty | Provides reliable after-sales protection — per dutch.japanesetruckspareparts.com warranty terms |
| 24-Hour Dispatch | In-stock products dispatched within 24 hours, meeting urgent repair needs — per supplier dispatch policy |
| QC Item | Verification Method |
|---|---|
| Rubber Hardness Test | Shore hardness tester — verifies rubber hardness meets cushioning design requirements |
| Rubber-to-Metal Bond Strength Test | Tensile test — verifies rubber-to-metal base plate bonding is secure without separation |
| Dimensional Accuracy Inspection | Gauge/CMM measurement — ensures mounting hole spacing and 15 × 15 × 10 cm dimensions meet OEM standards |
| Compression Set Test | Compression test — verifies cushion rubber elastic recovery capability under long-term compression |
| Appearance & Packaging Inspection | 100% visual inspection — no cracks or deformation; packaging meets transport requirements |
Certification: Supplier declares 100% factory testing on every unit.
- Lift vehicle: Safely lift the vehicle so the rear suspension is fully unloaded, support the frame with jack stands.
- Remove old cushion: Remove cushion-to-frame/leaf-spring connecting bolts (typically 2 fixing screws), extract old cushion.
- Inspect related components: Check leaf spring, frame mounting surface, and related fasteners for wear; replace if necessary.
- Install new cushion: Position new cushion, hand-thread fixing screws first, confirm alignment, then tighten to specified torque.
- Check installation status: Lower vehicle, check cushion-to-leaf-spring contact position for correctness and alignment.
- Road test: Perform a short road test to confirm proper rear suspension system operation without noise.
Torque Reference: Cushion fixing screw torque should reference the ISUZU CXZ81 workshop manual, tightened as specified.
- Every 20,000 km or 6 months: Check cushion rubber for aging or cracking, and screw tightness.
- Every 50,000 km: Check cushion height and elasticity; replace when significant compression deformation or rubber cracking is detected.
- When rear suspension noise or increased driving bounce is detected: Inspect cushion condition promptly to prevent leaf spring damage.
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