Automotive replacement part that restores accurate speedometer readings in compatible GM automatic transmissions. Mechanics and home enthusiasts gain reassurance from a direct-fit spare matched to manufacturer references, TCI Automotive Speedo Drive Gear. Will the identified model and part number match the vehicle before ordering?
⚡ At a Glance
- • Fit & Compatibility: Compatible with GM 200C, 375B, TH425, TH475 and 700R4 transmissions
- • Best for: Owners and mechanics replacing speedo drive gears on the listed GM transmissions
- • Not ideal for: Vehicles using other transmission types or universal speedometer setups
44-tooth speedo drive gear identified by model 880013 and MPN 880013. Item weight listed as 0.32 ounces and sold under TCI Automotive.
Accurate speedometer calibration – Thanks to 44-tooth gear
Tooth count determines the ratio between the transmission output and the speedometer cable, so 44 teeth set the intended calibration for compatible gearboxes. Matching tooth count preserves the factory speedometer relationship.
Restores correct speed readings when replacing a worn drive gear, avoiding misreading of vehicle speed.
Straightforward parts matching – With OEM part number 880013
Manufacturer references list the part as model 880013 and MPN 880013, allowing direct cross-checking against original equipment numbers. Exact part referencing reduces the risk of ordering the wrong replacement.
Simplifies procurement and ensures the replacement matches the original specification where the same reference is used.
Low rotational load – With 0.32-ounce unit weight
Listed weight of 0.32 ounces keeps added mass on the speedometer drive shaft minimal, limiting extra rotational inertia. Low mass helps maintain needle responsiveness and avoids unnecessary strain.
Minimal impact on drive components and preserves speedometer responsiveness after fitting.
✨ The 4 Key Reasons for TCI Automotive Speedo Drive Gear
- Low mass – Reduces rotational load for crisper speedometer response and improved needle stability
- Easy identification – Speeds up ordering using the manufacturer's part number reference
- Workshop-ready spare – Compact to store and swap during routine transmission servicing
- International labelling notice – Alerts buyers to regional differences in fit, instructions, and terms
📋 Technical Details at a Glance
- Category: Automotive Parts and Accessories
- Brand: TCI Automotive
- Model: 880013
- Manufacturer Part Number (MPN): 880013
- Product ID (ASIN): B00AULLV3E
❓ Frequently Asked Questions
Q: Is this gear compatible with my GM transmission?
A: Compatibility is stated for GM 200C, 375B, TH425, TH475 and 700R4 transmissions, so confirm the vehicle transmission type matches one of these models before ordering.
Q: What is the manufacturer's part number for identification?
A: The part is listed as model 880013 with manufacturer part number 880013 for matching against original equipment references.
Q: Are there differences for international purchases?
A: Product information notes that international items may differ in fit, labels or instructions, so check regional terms and seller details where applicable.
🏆 Our Verdict
Suitable for owners and workshops needing a like-for-like speedometer drive replacement on the specified GM transmissions. Direct part number matching and the 44-tooth configuration are the key benefits for restoring correct speed readings. While cost considerations depend on parts sourcing, a correct replacement avoids repeat repairs and delivers reliable long-term value when fitted to the matching transmission.
