4-Wire Alternator Repair Plug Harness Connector – Delco CS130 / CS121 / CS144 /Alternators PT1929 Replaces 12085525, 12085527, 12085528, 12101895, 12117361 • Cross-ref PT1929 4-Wire Pigtail • Female Fits CS121 • CS130 • CS144 100% New Aftermarket Product Highlights
- Direct replacement 4-wire alternator lead/pigtail for Delco CS121 / CS130 / CS144 internal-regulator alternators.
- OEM-style connector shell and terminals for secure engagement and long service life.
- 100% new aftermarket from factory. Color may vary from photos (does not affect function).
- Ideal for repair, retrofits, or harness rebuilds on many Buick, Cadillac, Chevrolet, GMC and others (see compatibility list below).
What’s Included
- (1) 4-Wire Alternator Connector Pigtail (Female)
- Pre-crimped leads for quick splice
- Length: ~4.53 in / 115 mm
Specifications
- Series: Delco CS121 / CS130 / CS144 (IR/EF)
- Connector: Female • 4-wire
- Wires: 3 signal + 1 sense (typical)
- Length: 4.528 in (115 mm)
- Inline components: No diode/fuse/resistor
- Condition: New
Replaces / Cross-References
Part No.: 12085525, 12085527, 12085528, 12101895, 12117361, PT1929
Lester families (examples): 7902-11, 7954, 7969-2, 8128, 8174-5, 8189-7, 8192-5, 8193-5, 8202-7, 8213-7, 8225-7, 8226-11, 8248-11
Numbers for identification only—match connector style and alternator series before purchase.
Fitment Note: For vehicles equipped with Delco CS121/CS130/CS144 alternators. Compare the plug shape and wire count to your original. If you need help confirming, send us your alternator model or a photo of the connector. Detailed Vehicle Compatibility (Partial List) Covers many Buick, Cadillac, Chevrolet, GMC and others from late 80s–late 90s. Scroll to view. Applications include (selection):
Buick Century (86–96), Electra (86–90), LeSabre (86–99), Park Avenue (91–96), Reatta (88–91), Regal (86–95), Riviera (86–91), Roadmaster (91–96), Skyhawk (86–89), Skylark (86–98), Somerset (86–87);
Cadillac 60 Special (93), Allante (87–93), Cimarron (86–88), DeVille (86–99), Eldorado (86–02), Escalade (99–00), Fleetwood (86–96), Seville (86–97);
Chevrolet Astro (86–93), B-series (92–00), Beretta (87–96), Blazer (87–94), C/K/R/V trucks & Suburban lines (late 80s–99), Camaro (87–97), Caprice (86–96), Cavalier (87–95), Celebrity (86–90), Corsica (87–96), Corvette (86–96), Express/Savana vans (96–00), G-series vans (87–96), Impala (94–96), LLV (87–93), Lumina & APV (90–99), Monte Carlo (98–99), P-chassis (87–99), Tahoe (95–00), S/T trucks & utilities incl. S-10 (87–93);
GMC equivalents for C/K/R/V/Suburban/TopKick/Kodiak, G-series, Safari/Sonoma/Jimmy, B-series school bus/chassis (years per list), plus others;
AM General Hummer (92–01, diesel & gas selections); Dodge Monaco (90–92); Eagle Premier (88–92); Geo Prizm (89–95); Hummer H1 (02–06); Isuzu Pickup/Rodeo/Trooper (select years); Jeep Cherokee/Comanche/Wagoneer (87–90); Oldsmobile families/Custom Cruiser/LSS/Regency/Silhouette/Toronado (per years listed); Pontiac 6000/Bonneville/Fiero/Firebird/Grand Am/Grand Sport (per years listed); Saturn SC/SL/SW (91–97); Toyota Corolla & Europe-market Carina/Corolla/Celica (select years). The full list from our catalog is long; if your vehicle falls in these families and years, this is likely the correct pigtail as long as your alternator is CS121/CS130/CS144. Shipping & Returns
🚚 Fast handling with tracking. Well-packed to protect connectors and pins.
↩️ Easy returns if unused and in original condition (see seller policy).
International Buyers
Customs/import duties and restrictions vary by country and are the buyer’s responsibility. Please check with your customs office before ordering.
Notes: Colors may vary from photos. Vehicle/brand names and numbers are for identification and cross-reference only. Verify connector style and alternator series (CS121/CS130/CS144) before purchase.
