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Eaton 5577511-MP4 TCM Mounting Stud | Endurant HD OEM
Eaton 5577511-MP4 TCM Mounting Stud (M6 x 50.0) for Endurant HD transmissions. Pack of 4 studs secures TCM cover to main housing. Direct OEM replacement. Global shipping & lifetime warranty. Get your quote today!
Product Details
Eaton 5577511-MP4 TCM Mounting Stud – Endurant HD OEM (M6 x 50.0)
Factory-direct OEM replacement part for Eaton Cummins Endurant HD automated transmissions. The 5577511-MP4 is the official TCM Mounting Stud (M6 x 50.0 threaded stud), used in sets of 4 to securely mount the Transmission Control Module (TCM) cover (4307675) to the main housing. Essential for proper TCM alignment, vibration resistance, and electrical grounding in high-mileage heavy-duty applications.
Why Choose the Eaton 5577511-MP4 TCM Mounting Stud?
- Exact OEM M6 x 50.0 threaded stud – precise fit for TCM cover installation
- Pack of 4 (as required per transmission)
- High-strength steel construction for secure mounting and durability
- Direct replacement during TCM cover service or main housing repairs
- Compatible with all Endurant HD models (Hard Lock & Non-Hard Lock)
- 28 years of OEM-level manufacturing experience at Volgen Power
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 5577511-MP4 (also EAHD5577511 in some catalogs) |
| Description | TCM Mounting Stud (M6 x 50.0) |
| Thread Size & Length | M6 x 50.0 mm |
| Quantity per Transmission | 4 (one set required for TCM cover mounting) |
| Material | High-strength steel |
| Weight (per stud approx.) | 0.01 lbs (very light fastener) |
| Included In | Main Housing Service Kits (e.g., with TCM Cover 4307675) |
Vehicle & Transmission Compatibility
Designed exclusively for Eaton Endurant HD Series:
| Transmission Models | Application Notes |
|---|---|
| EEO-17F112C / EEO-17F112C-XD | 17-speed Endurant HD |
| EEO-18F112C | 18-speed Endurant HD |
Popular Applications: Freightliner Cascadia, Peterbilt 579/567, Kenworth T680, International LT – paired with Cummins X15 engines.
Important Compatibility Note: This 5577511-MP4 stud is standard across all Endurant HD transmissions for mounting the TCM cover (4307675) to the main housing. Use with anaerobic sealant (5564561) during installation. Compatible with both Non-Hard Lock (pre-2023) and Hard Lock designs.
Installation Highlights
Requires TCM cover removal (simple access on top of the main housing). Align the TCM cover (4307675) to the 4 mounting studs, thread on nuts (if applicable), or torque to spec usinga 7mm socket. Apply anaerobic sealant (5564561) if reusing studs or per the service manual. Perform TCM recalibration if disturbed. Total service time: 30–60 minutes (as part of TCM service). Reference Eaton Endurant HD Service Manual TRSM0950 and TCM Installation video for detailed procedure.
Why Buy from Volgen Power?
- 100% genuine OEM specification – direct from the Eaton Cummins supply chain
- Factory direct pricing – up to 40% lower than dealerships
- Lifetime warranty on all transmission components
- Fast global shipping from China + USA warehouse stock
- Trusted by fleets in 70+ countries since 1996
- Full technical support & TCM service guidance
Frequently Asked Questions
What size is the Eaton 5577511-MP4 TCM Mounting Stud?
It is an M6 x 50.0 mm threaded stud. Four are required to mount the TCM cover (4307675) to the main housing.
Is this stud sold individually or in packs?
Sold individually (order quantity 4 for a full set). Not Sold Separately in some kits, but available asa standalone replacement.
Do I need sealant or nuts for installation?
Use anaerobic sealant (5564561, 50 mL tube) on threads if specified in the service manual. Nuts are typically part of the TCM cover assembly or reused; torque to spec with a 7mm socket.
Is 5577511-MP4 compatible with Hard Lock Endurant upgrades?
Yes – it is standard across all Endurant HD models, including Hard Lock bearing configurations.
What is your warranty on this part?
Lifetime warranty against manufacturing defects when installed correctly.
Need TCM cover or full service parts?
VIEW TCM COVER 4307675 →
Volgen Power – Shiyan, China • 28 Years • OEM Quality • Global Delivery
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