Click to zoom in
Specifications
SPECS: 9-T, CW, 16-SPL
SPECS FOR: Bosch PMGR Starters
DIM 1: 11mm ID x 25.8mm Gear OD x 81mm L
LESTER NUMBERS
17758, 17804, 31173, 33322
Replaces
Audi, Volkswagen 001-911-335, 047-911-335J, Bosch 1 006 209 641, 1 006 209 762
UNIT NUMBERS
Audi, Volkswagen 001-911-023, 001-911-023-B, 001-911-023-C, 001-911-023-CX, 001-911-023-X, 001-911-023B, 001-911-023C, 001-911-023CX, 001-911-023X; Bosch 0 001 121 001, 0 001 121 002, 0 001 121 003, 0 001 121 030, 0 001 121 031, 0 001 121 032, 0 001 121 033, 0 001 121 034, 0 001 121 035, 0 001 123 001, 0 001 123 052; Marelli 063521210310, 944280179400; Porsche 986-604-104-00, 996-604-103-00; Valeo 458467
Aftermarket Starter Drive 54-91123 Product Overview
Aftermarket Starter Drive 54-91123 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 54-91123, 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: 9-T, CW, 16-SPL SPECS FOR: Bosch PMGR Starters DIM 1: 11mm ID x 25.8mm Gear OD x 81mm L LESTER NUMBERS 17758, 17804, 31173, 33322 Replaces Audi, Volkswagen 001-911-335, 047-911-335J, Bosch 1 006 209 641, 1 006 209 762 UNIT NUMBERS Audi, Volkswagen 001-911-023, 001-911-023-B, 001-911-023-C, 001-911-023-CX, 001-911-023-X, 001-911-023B, 001-911-023C, 001-911-023CX, 001-911-023X; Bosch 0 001 121 001, 0 001 121 002, 0 001 121 003, 0 001 121 030, 0 001 121 031, 0 001 121 032, 0 001 121 033, 0 001 121 034, 0 001 121 035, 0 001 123 001, 0 001 123 052; Marelli 063521210310, 944280179400; Porsche 986-604-104-00, 996-604-103-00; Valeo 458467. 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
Read More
Frequently Asked Questions
How do I confirm this part is compatible? +
Compare 54-91123, 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.