7-speed manual transmission Corvette C7 6.2L V8 24255981 24255988 19,000 km
Buy Mustang parts Ltd, a 7-Speed Manual Transmission (Tremec TR-6070) with only 19,000 km is a high-value “Grade A” inventory item. This mileage is exceptionally low for a C7 gearbox, as most used units on the market typically range from 30,000 to 60,000 km.
1. Part Number Verification & Application
The part numbers you provided, 24255981 and 24255988, are the primary identifiers for the early-production C7 Stingray Z51 manual transaxle.
-
24255981: This is the main assembly number for the 2014–2015 Z51 manual transmission. It features the Active Rev Match sensors and the Z51-specific close-ratio gearing.
-
24255988: This often refers to the specific magnesium case casting or a sub-component of the main assembly.
-
Z51 vs. Base: The Z51 manual (RPO MEL) has a shorter 1st, 2nd, and 3rd gear compared to the Base Stingray (RPO MEP) for more aggressive acceleration.
2. Technical Specifications (TR-6070)
| Feature | Specification |
| Gears | 7 Forward, 1 Reverse (Triple Overdrive) |
| Max Torque | 460 lb-ft (Standard) / 635 lb-ft (Z06 spec) |
| Synchronizers | Triple-cone (1st-4th) / Double-cone (5th-7th) |
| Sensors | Gear Absolute Position (GAP) for Rev Matching |
| Fluid Type | Dexron III ATF (approx. 3.5L capacity) |
3. Market Value for Buy Mustang parts Ltd (2026)
Given the low mileage (19,000 km) and “Z51” performance status, this unit sits at the top of the price bracket:
-
Estimated Retail Value: $2,800 – $3,500 (Unit only).
-
Full Conversion Value: If bundled as a kit (with torque tube and pedals), the value exceeds $6,500.
-
Scarcity Note: As the C7 was the final front-engine, manual Corvette, these gearboxes are appreciating in value for owners performing “manual swaps” on automatic cars.
4. Inventory Inspection Checklist
Since you are listing this for a luxury parts business, verify these three points to justify a “Premium” price:
-
Input Shaft Play: At 19k km, there should be zero perceptible side-to-side play.
-
Reverse Lockout Solenoid: Ensure the electrical connector for the skip-shift (CAGS) and reverse lockout is not cracked. These are often damaged during removal.
-
Oil Cooler Ports: Confirm the Z51 internal pump ports are clean and the threads are undamaged. Base models do not have these ports, so their presence confirms this is the higher-spec Z51 unit.
Reviews
There are no reviews yet.