914Rubber Alternator Refresh Kit for Porsche 914 (1970-76)
Revitalize your Porsche 914’s charging system with the 914Rubber Alternator Refresh Kit, designed for all models (1970-76) and available through PMB Performance. With over 20 years of Porsche 914 expertise and a nearly two-decade partnership with 914Rubber, we’re the top retailer of their SKUs, selling more than anyone else. This kit includes essential components to restore your alternator’s performance, ensuring reliable power delivery and proper cooling.
Kit Components:
- Alternator Cooling Boot (Part #021.903.655.B): A reproduction cooling hose for alternators without retaining clips in the cooling housing. Made from high-grade silicone, it withstands temperatures up to 250°F, channeling airflow to prevent overheating. A degraded boot can reduce cooling efficiency, risking alternator failure.
- Alternator Inspection Cover (Part #021.119.295): A reproduction plastic cover for the fan housing, allowing access to the alternator’s top bolt while the engine is installed. Its precise fit maintains critical airflow, reducing operating temperatures by up to 15°C compared to a missing cover, based on our shop testing.
- Alternator Wiring Harness (Part #021.971.349.D): A reproduction harness with both grommets and all connectors for plug-and-play installation. Features 10-gauge wiring for optimal current flow, though the red lead may require slight stretching during install. If the grommet splits, apply silicone sealant for a secure seal.
- Alternator Belt (Part #068.903.137.D): A 10x965mm V-belt for the fan and alternator, compatible with 912E, 914, and select VW models. Made from reinforced rubber, it ensures proper tension (8-10mm deflection under 10N force) to prevent slippage and maintain charging efficiency.
Technical Details: Tailored for all Porsche 914 model years (1970-76), this kit addresses common alternator issues like poor cooling and wiring degradation. Installation requires removing the alternator; clean mating surfaces with isopropyl alcohol and torque mounting bolts to 25-30 Nm. Check belt tension with a gauge and adjust the tensioning cap (Bosch: Part #021.903.803, Motorola: Part #021.903.804, sold separately) for optimal performance. For 1970-72 models with Bosch alternators, inspect the M14 center shaft for wear. Pair with 914Rubber’s Engine Compartment Seal Set (Part #914.504.157.10) to enhance cooling efficiency. One kit per car.
Why PMB Performance? Our 20 years of 914 restorations—from electrical rebuilds to cooling system overhauls—ensure we source parts that last. We’ve partnered with 914Rubber since their start, offering their full catalog of OE-quality components. Perfect for concours restorations or daily drivers, this kit keeps your alternator running strong. Questions? Call (855) 786-7101 or email Support@pmbperformance.com.
Specifications:
- Compatibility: Porsche 914 (1970-76)
- Materials: High-grade silicone, reinforced rubber, plastic, copper wiring
- Part Numbers: 021.903.655.B, 021.119.295, 021.971.349.D, 068.903.137.D
- Quantity: 1 kit per car
Why 914Rubber? Their precision-engineered parts, like the silicone cooling boot and plug-and-play harness, meet or exceed OEM standards. With PMB Performance’s unmatched inventory and hands-on expertise, your 914’s charging system will perform like new. Trust us to keep your classic powered up.