Heavy Duty Tie Rod End with Forged Steel Construction and ISO 9001 Certified for Japanese Trucks
The Tie Rod End (Steering Ball Joint) with OEM number 3777703951 is a verified replacement part designed for heavy-duty Japanese commercial trucks, including HINO 500 Series / FS Series, ISUZU Forward / N-Series NPR, and MITSUBISHI Fuso Canter / Fighter models. As a critical steering linkage component, the tie rod end connects the steering rack or idler arm to the steering knuckle, converting rotational steering input into precise wheel movement.
Manufactured to OE specifications under ISO 9001 and TS16949 quality certifications, this steering ball joint features precision-forged steel construction with heat-treated components, engineered to withstand the extreme loads, vibration, and road shock encountered in heavy-duty truck operations.
| Part Number: | 3777703951 | Product Name: | Tie Rod End |
| Car Model: | HINO/ISUZU/MITSUBISHI | Engine Model: | |
| 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 Make It As Requested | ||
| Material: | High-strength aluminum alloy & precision bearings | ||
| Installation: | Direct OEM replacement | Quality Standard: | OEM equivalent / ISO quality control |
Compatible Vehicle Brands (verify with your specific model and VIN)
| Brand | Model Series / Truck Lines |
|---|---|
| HINO | 500 Series, FS Series, Ranger, Dutro / 300 Series (various models) |
| ISUZU | Forward / F-Series (FSR, FVR), N-Series (NPR, NQR) [14†L4-L6] |
| MITSUBISHI FUSO | Canter, Fighter, Super Great (various models) |
| Cross‑Fit | Also listed for SCANIA TOURING, MITSUBISHI Triton/L200 (verify fitment) |
- Quality Certification - Certified under ISO 9001 / TS16949 quality management systems, ensuring consistent manufacturing standards across each production batch.
- OE Number Interchange - Cross‑reference: 3777703951, 3777703941, 2389990225001, 2389990224001. Note that the part is also listed as compatible with SCANIA 1358792, 2051165 for certain cross‑fit applications — verify fitment with your specific vehicle.
- Comprehensive Quality Control - Each component undergoes dimensional inspection, material hardness testing, dynamic load testing, and 100% functional assembly verification under load to ensure reliable operation in heavy-duty truck service conditions.
| Feature | Benefit + Verification Signal |
|---|---|
| Forged alloy steel ball stud, heat‑treated | Withstands extreme loads — prevents premature wear or fracture in heavy truck applications. Hardness verified by Rockwell HRC 58‑62 on production batch sampling. |
| Precision‑machined socket housing | Eliminates steering play — maintains factory toe alignment. Dimensional tolerance verified by CMM inspection. |
| Fully sealed dust boot | Prevents contamination — keeps dirt, water, and road debris out of the bearing chamber. Boot integrity tested for oil resistance and ozone aging. |
| Factory pre‑greased, re‑greasable design | Extends service life — allows periodic maintenance. Grease retention verified on assembly line. |
| Direct replacement fit | Reduces vehicle downtime — no modifications needed. Fitment verified with OE mounting hole patterns and thread sizes. |
| ISO 9001 / TS16949 certified | Quality consistency — each production batch meets international automotive quality standards. Certificate available upon request. |
| QC Item | Verification Method |
|---|---|
| Ball stud hardness | Rockwell hardness tester — target HRC 58–62, batch sampling |
| Axial play / end play | Dial gauge measurement under 2 kN preload — within 0.10 mm tolerance |
| Rotational torque | Torque wrench measurement of pivot resistance — matches OE specification |
| Dust boot seal integrity | Air pressure decay test — seals verified for off‑road durability |
| Dimensional accuracy | CMM inspection of mounting hole spacing and thread pitch — ±0.05 mm tolerance |
| Fatigue / cycle life | Sample units tested on dynamic load bench — min. 500,000 cycles without failure |
| Full assembly test — Random 1% of each batch assembled to test fixture, inspected for fit, movement, and torque. | |
When to replace tie rod ends (warning signs): Excessive vertical play when lifting wheel, uneven or "feathered" tire wear, steering wheel wander / loose feel on highway, clunking noise when turning at low speeds, or boots torn with visible contamination.
- Safely lift vehicle and support the axle.
- Remove wheel and locate tie rod end at steering knuckle.
- Remove cotter pin and castle nut from ball stud.
- Use a dedicated ball joint separator / pickle fork (do NOT hammer stud — risks damaging steering knuckle).
- Remove old tie rod end from steering linkage.
- Record thread length position before removal — critical for toe alignment reference.
- Compare new tie rod end with old unit — ball stud taper angle and length must match.
- Clean the mounting hole on steering knuckle, then install new tie rod end with new castle nut.
- Torque castle nut to 60–90 Nm (factory specification for medium‑heavy trucks — confirm with vehicle manual).
- Insert a new cotter pin through castle nut slots and stud hole — bend legs securely.
- Reinstall wheel, lower vehicle, and perform professional wheel alignment (toe adjustment) — mandatory.
- Road test: verify straight tracking, no wander, and smooth steering return after turns.
- Visual inspect dust boots and check for grease leakage every 20,000 km.
- Check for axial play every tire rotation — any detectable movement means immediate replacement.
- Re‑grease through grease fitting every 30,000 km (or per vehicle manufacturer schedule).
- Always replace tie rod ends in pairs (left and right) to maintain even steering response.
For Steering Tie Rod End 3777703951 — Heavy Duty Ball Joint for Japanese Trucks:
- ✔️ Wholesale price for fleets, repair shops, and distributors
- ✔️ Single unit sample available (test fitment before bulk order)
- ✔️ Bulk order discount & custom packaging
- ✔️ QC report & certificate of conformance (ISO 9001 / TS16949)
Please provide your quantity, destination port, and vehicle specifics (make, model, year, VIN, and position — left/right/inner/outer if applicable). We can cross‑check fitment with OEM catalogs to ensure the correct part is supplied.
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