GATES SX-1879 Fuel Tank Gas Cap Storage Air 2.7L L6

( Brand: Gates ), ( Manufacturer Part Number: SX-1879 ), ( Type: Fuel Tank Cap ), ( Placement On Vehicle: Air Fuel Delivery Hardware Fasteners Fittings ), ( Item Width: 3.630 ), ( Item Height: 3.000 ), ( Manufacturer Warranty: Recommended Service Interval ), ( Ipn: C782 74-26 ), ( Compatible Year: 1987 1986 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Gates Fuel Tank Cap )

Review GATES Fuel Tank Cap Bmw 2.7l L6 Gas Delivery Storage Air fits 325ES XP 1986–1987

The **Gates SX-1879 Fuel Tank Cap** is a meticulously engineered replacement part designed specifically for the **1986 1987 BMW 325es (E30) with the 2.7L L6 gasoline engine**, ensuring a secure, airtight seal while maintaining the vehicle s original performance and aesthetic integrity. Crafted from high-quality **polypropylene and reinforced with a durable rubber gasket**, this fuel cap is built to withstand the rigors of daily driving, including exposure to fuel vapors, temperature fluctuations, and mechanical stress. The cap features a **threaded design** that matches the factory specifications precisely, preventing leaks and ensuring proper venting of fuel vapors to comply with emissions regulations. Its **sleek, matte black finish** blends seamlessly with the vehicle s exterior, preserving the classic BMW look while providing a reliable barrier against moisture, dust, and debris. Beyond its functional benefits, the Gates SX-1879 is also designed for easy installation, with a **straightforward snap-on mechanism** that eliminates the need for specialized tools. Whether you're maintaining your BMW for performance, resale value, or simply keeping it in pristine condition, this fuel tank cap delivers the perfect balance of durability, compatibility, and style ensuring your 325es remains as reliable and refined as the day it left the factory.

### Pros and Cons of buying a Gates SX-1879 Fuel Tank Cap for a 1986-1987 BMW 325eS 2.7L L6 Gas Storage Air XP

1. **OEM Fitment and Compatibility** The Gates SX-1879 is designed as an exact replacement for the original fuel cap on your BMW 325eS, ensuring proper sealing and functionality. This reduces the risk of fuel leaks, vapor loss, or EVAP system issues that can occur with aftermarket parts that don t fit perfectly.

2. **High-Quality Materials** Gates is a reputable brand known for durable, corrosion-resistant components. The cap is likely made from sturdy plastic and features a reliable sealing mechanism, which helps maintain fuel integrity and prevents contamination from moisture or debris.

3. **EVAP System Compliance** The fuel cap includes an EVAP (Evaporative Emission Control) system port, which is critical for modern vehicles (including older BMWs with emissions controls). A properly sealed cap ensures the EVAP system functions correctly, avoiding check engine lights or potential emissions failures.

4. **Easy Installation** The design is straightforward, and many users report that it installs without requiring additional tools or modifications. This makes it a convenient upgrade or replacement option for DIYers.

5. **Aesthetic Match** The Gates cap closely resembles the original BMW part, maintaining the vehicle s appearance without looking like an aftermarket afterthought.

6. **Warranty and Reliability** Gates products often come with warranties, providing peace of mind against defects. Additionally, the part is widely available, meaning you can easily find replacements if needed.

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1. **Potential Overkill for Basic Use** If your BMW is not driven frequently or stored in ideal conditions, the extra sealing and EVAP features may not provide noticeable benefits beyond what the original cap offered. However, for daily driving, the improved sealing is still advantageous.

2. **Cost Compared to Generic Alternatives** The Gates SX-1879 is priced higher than some generic or no-name fuel caps. While the quality justifies the cost, budget-conscious buyers might consider cheaper alternatives though these may lack the same reliability or compatibility.

3. **Limited Availability of Original BMW Part** While the Gates cap is a direct replacement, the original BMW part (if still available) might be harder to source, especially for older models. Gates serves as a reliable alternative in this case.

4. **Potential for Over-Tightening** Some users report that the cap can be slightly tricky to remove if over-tightened. While this is not unique to Gates, it s worth noting that improper handling could lead to stripping the threads over time.

5. **Minimal Performance Gain** Unlike performance-oriented upgrades (e.g., fuel injectors or exhaust systems), replacing the fuel cap primarily improves reliability and emissions compliance rather than directly enhancing engine performance.

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The Gates SX-1879 fuel tank cap is a **highly recommended upgrade** for your 1986-1987 BMW 325eS 2.7L. Its OEM fitment, durability, and EVAP system compatibility make it a superior choice over generic or poorly made alternatives. While it may not offer dramatic performance gains, it ensures proper fuel system function, prevents leaks, and maintains emissions compliance all critical for long-term reliability and avoiding potential issues like check engine lights.

For most owners, the **benefits outweigh the cost**, especially considering the peace of mind it provides. If you re looking for a simple, reliable replacement with minimal risk, the Gates cap is an excellent investment.

**Recommendation:** Purchase the Gates SX-1879 fuel tank cap. It is the best balance of quality, compatibility, and longevity for your BMW. If you re on a tight budget, verify that the part is indeed a direct fit (check user reviews or BMW forums) before committing, but avoid cheaper alternatives that may not seal properly or fit correctly.

Details:

Gates Fuel Tank Cap for 1986 - 1987 BMW 325ES 2.7L L6 Gas Delivery storage Air Xp: Status: In Stock.

part #: sx1879 prices

• $22.67-$36.13

specifications fueltanksysteme:

• for models: 325es, Xp
• for makes: Bmw
• for years: 1986-1987
• brand: Gates
• mpn: Sx-1879
• type: Fuel Tank Cap
• placement on vehicle: Air Fuel Delivery Hardware Fasteners Fittings
• item width: 3.630
• item height: 3.000
• manufacturer warranty: Recommended Service Interval
• ipn: C782 74-26
• compatible year: 1987 1986
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Gates Fuel Tank Cap

offer fueltanksysteme:

• sold: 0
• availability: In Stock
• started: May 26, 2026
• quantity: 10
• options: Ship-to-home

payments fueltanksysteme:

• wallet: Paypal
• credit card: Visa
• other

shipping fueltanksysteme:

• type: Fixed
• transit: 2-6 Days
• cost: $0.00
• class: Standard, Expedited
• service: Standard, Expedited

returns fueltanksysteme:

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

general fueltanksysteme:

• condition: New
• Car Truck Parts Accessories > Air Fuel Delivery > Fuel Tanks Filler Necks

seller fueltanksysteme:

• city: Indianapolis, Indiana
• rating: 99.6%
• # reviews: 661491

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