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Specifications
SPECS: 12-T, CW, 19-SPL, Positive Engagement
SPECS FOR: Delco 50MT Series DD Starters
DIM 1: 15.9mm ID, 45.5mm Gear OD, 168mm L
LESTER NUMBERS
3872
Replaces
Caterpillar 3T-8754, 5S-6372, 9S-9772, Delco 1894221, 1967952, 1977013, 1979835, 800077
UNIT NUMBERS
Caterpillar 0R5214, 1P9162, 1P9182, 374458, 3S4458, 3T2781, 3T3430, 3T8950, 7N8604, 8S9524, 8S9542, OR5214; Cummins 3604645RX; Delco 10478862, 1109497, 1109632, 1109757, 1109779, 1109792, 1109849, 1109949, 1990232, 1990240, 1990247, 1993781
Aftermarket Starter Drive 54-127 Product Overview
Aftermarket Starter Drive 54-127 is an aftermarket starter drive intended for compatible starter repair, rebuilding, and maintenance applications. It is designed for professional rebuilders, technicians, repair shops, and customers who need a dependable replacement for a worn, damaged, corroded, or missing component. Before ordering, confirm the product name, part number 54-127, measurements, mounting style, connector configuration, original equipment references, and application information.
Product Specifications and Application Details
The original listing provides these product-specific details: Specifications SPECS: 12-T, CW, 19-SPL, Positive Engagement SPECS FOR: Delco 50MT Series DD Starters DIM 1: 15.9mm ID, 45.5mm Gear OD, 168mm L LESTER NUMBERS 3872 Replaces Caterpillar 3T-8754, 5S-6372, 9S-9772, Delco 1894221, 1967952, 1977013, 1979835, 800077 UNIT NUMBERS Caterpillar 0R5214, 1P9162, 1P9182, 374458, 3S4458, 3T2781, 3T3430, 3T8950, 7N8604, 8S9524, 8S9542, OR5214; Cummins 3604645RX; Delco 10478862, 1109497, 1109632, 1109757, 1109779, 1109792, 1109849, 1109949, 1990232, 1990240, 1990247, 1993781. Use this information together with the product photographs, dimensions, cross-reference numbers, and application notes when confirming the correct replacement.
Key Features and Benefits
- Product-specific aftermarket replacement for compatible starter applications
- Part-number-focused identification for easier comparison and ordering
- Suitable for professional repair, rebuilding, inspection, and maintenance work
- Designed to support dependable fit, operation, and long-term service performance
- Useful for matching original equipment numbers and common cross-reference numbers
Compatibility and Fitment Guidance
Fitment can vary by vehicle model, starter or alternator design, production date, manufacturer, connector style, mounting configuration, and original equipment number. Compare the listed part number, product photos, dimensions, Lester numbers, unit numbers, and replacement references with the original component. Contact RCAutoElectric when additional compatibility confirmation is required.
Professional Installation Notes
Inspect the complete assembly and related components before installation. Professional installation or rebuilding service is recommended whenever specialized tools, electrical testing, soldering, pressing, torque specifications, or technical adjustments are required.
Explore Related RCAutoElectric Categories
Starters | Starter Parts | Starter Rebuild Kits | Alternators | Alternator Parts | Alternator Rebuild Kits
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Frequently Asked Questions
How do I confirm this part is compatible? +
Compare 54-127, dimensions, cross-reference numbers, mounting details, application notes, and product images with the original component before ordering.
Is this an OEM part or an aftermarket replacement? +
This listing is for an aftermarket starter drive unless the original title or description specifically states that the item is OEM.
What should I verify before ordering? +
Check the original equipment number, unit number, measurements, connector style, mounting design, rotation or polarity when applicable, and all fitment details in the listing.
Is professional installation recommended? +
Professional installation or rebuilding service is recommended when the job requires special tools, electrical testing, soldering, pressing, torque settings, or technical adjustments.
Where can I find related repair parts? +
Use the internal links in the SEO section to browse related starters, starter parts, starter rebuild kits, alternators, alternator parts, and alternator rebuild kits.