BMW 12521277533 Square Pin Plug Engine Connector C101 12521273189

( Manufacturer Part Number: 12521277533 ), ( Part Type: Pin Plug Engine ), ( Non-domestic Product: Yes ), ( Applicable Regions: Worldwide ), ( Country Of Origin: United States ), ( Modified Item: No ), ( Placement On Vehicle: Front )

Review BMW Square Pin Plug Engine Connector fits E30 M10 M20 325 318 2017

Introducing the BMW E30 325, 318i M10 and M20 Square 17 Pin C101 Engine Connector with the part number 12521277533, specifically designed for BMW E30 models manufactured between 1982 and 1994. This engine connector is a crucial component for maintaining the electrical connectivity between the engine and the vehicle's wiring harness.

The connector features a square 17-pin design, which is a standard configuration for BMW E30 engines. The pins are precisely engineered to ensure a secure and reliable connection, while the square shape facilitates easy installation and removal.

This engine connector is suitable for both M10 and M20 engines, which were used in various BMW E30 models. The M10 engine was available in the 318i and 318is models, while the M20 engine was utilized in more powerful versions such as the 325i and 325is.

The connector is made of high-quality materials, ensuring its durability and resistance to wear and tear. The pins are plated with a protective coating, which prevents corrosion and oxidation, maintaining the electrical conductivity of the connector over time.

Installing this engine connector is a straightforward process. It simply plugs into the engine wiring harness and the vehicle's wiring harness, requiring no additional tools or specialized knowledge. However, it is always recommended to consult your vehicle's service manual for specific instructions and precautions.

In summary, the BMW E30 325, 318i M10 and M20 Square 17 Pin C101 Engine Connector (part number 12521277533) is an essential component for maintaining the electrical connectivity between the engine and the vehicle's wiring harness. Its square 17-pin design, compatibility with both M10 and M20 engines, and high-quality materials ensure a reliable and durable connection.

The BMW E30 325, 318, M10, and M20 models with the square 17-pin C101 engine connector (part numbers 12521273189 and 12521277533) are essential components for repairing and servicing these vehicles. Let's discuss the pros and cons of buying these engine connectors to help you make an informed decision.

1. OEM (Original Equipment Manufacturer) Parts: These engine connectors are manufactured by BMW, ensuring they are designed to fit and function perfectly with your vehicle.

2. High-Quality Materials: BMW uses top-notch materials to produce these engine connectors, ensuring durability and longevity.

3. Comprehensive Repair: These connectors provide access to various engine systems, enabling you to diagnose and repair a wide range of issues.

1. Cost: BMW engine connectors can be quite expensive compared to aftermarket alternatives.

2. Availability: These parts may be challenging to find locally, requiring you to order them online or from specialized BMW dealers.

The BMW E30 325, 318, M10, and M20 square 17-pin C101 engine connectors (part numbers 12521273189 and 12521277533) are essential OEM components for repairing and servicing these vehicles. While they come with some advantages like high-quality materials and perfect fit, they also have drawbacks, such as cost and availability. If you value the peace of mind that comes with using genuine BMW parts, then the investment in these engine connectors is worthwhile. However, if you're on a tight budget, you may want to consider aftermarket alternatives or used OEM parts. Ultimately, the decision depends on your priorities and the importance of having a reliable, functioning vehicle.

Details:

This of C101 plug housing was used on early E30 model's with Ketogenic engine management. This part does not fit the later Moronic engine management systems, which used a round C101 plug. Part number, is new, unused and no longer available from BMW or its dealers suppliers. This C101 plug housing.

part #: 12521277533 prices

• $39.50-$99.95

specifications electvehic:

• for models: E30, M10, M20, 325, 318
• for makes: Bmw
• for years: 2017
• mpn: 12521277533
• part type: Pin Plug Engine
• non-domestic product: Yes
• applicable regions: Worldwide
• country of origin: United States
• modified item: No
• placement on vehicle: Front

seller electvehic:

• rating: 100.0%
• city: San Diego, California
• # reviews: 589

general electvehic:

• Car Truck Parts Accessories > Electric, Hybrid PHEV Specific Parts > Other Electric, Hybrid PHEV Specific Parts
• condition: New

returns electvehic:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

payments electvehic:

• other
• credit card: Discover
• wallet: Paypal

offer electvehic:

• started: March 19, 2026
• availability: In Stock
• sold: 0
• options: Ship-to-home
• quantity: 1

shipping electvehic:

• type: Calculated
• cost: $5.52
• service: USPS Ground Advantage
• carrier: USPS
• class: Standard
• transit: 4-9 Days

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