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  3. SCOTT DRAKE D1AZ-6766-C

SCOTT DRAKE D1AZ-6766-C Oil Cap Pcv Elbow 842110155559

fits year: 1970–1973.

D1az-6766-c Scott Drake 1970-1973 Oil Cap With Pcv Elbow Chrome

( Brand: Scott Drake ), ( Manufacturer Part Number: D1AZ-6766-C ), ( Type: Engines Engine Components Gt; Valve Covers ), ( Country Of Origin: China ), ( Manufacturer Warranty: Manufacturers Limited 1 Year ), ( UPC: 842110155559 )

Review SCOTT DRAKE Oil Cap Pcv Elbow Chrome fits 1970–1973

The **Scott Drake D1AZ-6766-C Oil Cap/PCV Elbow (1970 1973 models)** is a meticulously engineered, high-performance replacement part designed to restore optimal engine function and emissions compliance in select Ford Mustang and Mercury Cougar vehicles from the early 1970s. Crafted from durable, corrosion-resistant materials, this precision-machined component serves as both an oil filler cap and a Positive Crankcase Ventilation (PCV) elbow, ensuring seamless integration into the engine s breathing system while maintaining proper oil containment. The D1AZ-6766-C features a robust, threaded design that securely attaches to the valve cover, preventing leaks and maintaining vacuum integrity critical for preventing oil sludge buildup and preserving engine longevity. Engineered to meet the specific dimensional requirements of the 302 cubic-inch V8 engines found in these classic muscle cars, this elbow incorporates a precise internal passage that efficiently routes crankcase fumes through the PCV system, reducing harmful emissions while minimizing backpressure. Its clean, unobstructed flow design helps maintain optimal engine performance, particularly in high-revving applications where proper ventilation is essential. Whether restoring stock functionality or upgrading an aftermarket setup, this Scott Drake part is built to exacting standards, ensuring a perfect fit and reliable operation. Ideal for enthusiasts seeking both authenticity and performance, the D1AZ-6766-C is a must-have for any 1970 1973 Ford Mustang or Cougar owner looking to maintain peak mechanical efficiency and compliance with original equipment specifications.

### Pros and Cons of buying a Scott Drake D1AZ-6766-C (1970 1973 Oil Cap/PCV Elbow)

#### **Pros:**

1. **Direct Fitment** This part is specifically designed for 1970 1973 D1AZ engines (common in early Mazda RX-3, RX-5, and some Ford models), ensuring compatibility without modifications. It replaces both the oil cap and PCV (Positive Crankcase Ventilation) elbow in one unit, simplifying installation.

2. **Improved PCV Functionality** The PCV system helps reduce crankcase pressure, preventing oil leaks and blow-by. A properly functioning PCV elbow reduces engine wear and emissions, contributing to better long-term engine health.

3. **Oil Cap Convenience** The integrated oil cap design means you won t need separate parts for filling oil, reducing clutter and potential loss of small components.

4. **Potential Performance Benefits** A well-functioning PCV system can improve engine breathing slightly, especially in older engines prone to carbon buildup or valve stem wear.

5. **Cost-Effective Replacement** Compared to buying separate oil caps and PCV elbows, this combined unit may offer better value, especially if the original parts are worn or cracked.

6. **Ease of Installation** Since it replaces two components in one, the job is quicker and less prone to errors (e.g., forgetting to install the PCV elbow).

7. **Prevents Leaks** If the original oil cap or PCV elbow was leaking, this part ensures a sealed system, preventing oil from entering the intake or crankcase.

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#### **Cons:**

1. **Limited Availability** As a vintage part, it may not be widely stocked in local auto shops. You ll likely need to order it online (e.g., from specialty Mazda/Ford parts suppliers or eBay), which could involve shipping delays.

2. **Potential Quality Variability** Since this is an aftermarket or reproduction part, the quality may not match OEM standards. Some users report that cheaper versions may not seal as effectively or last as long as original components.

3. **Compatibility Concerns** While it s designed for the D1AZ, slight variations in engine modifications (e.g., aftermarket intake manifolds or turbocharging) could cause fitment issues. Always verify the part s specifications against your exact engine configuration.

4. **PCV System Dependence** If the rest of your PCV system (hoses, valves) is degraded, replacing just this elbow won t fully resolve PCV-related issues. You may need to inspect and replace other components (e.g., PCV valve, hoses) for optimal performance.

5. **Price Sensitivity** While it s a combined unit, the cost may still be higher than buying separate, used parts from a junkyard. If budget is tight, sourcing individual components might be more economical.

6. **Installation Skill Required** If you re not experienced with engine work, removing the old PCV elbow and oil cap can be tricky due to their location (often near the valve cover). Improper handling could damage gaskets or threads.

7. **Longevity Uncertainty** Aftermarket parts, even high-quality ones, may not last as long as OEM components. You ll need to monitor for leaks or PCV system inefficiencies over time.

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### **Conclusion:**

The Scott Drake D1AZ-6766-C oil cap/PCV elbow is a practical and convenient replacement for 1970 1973 D1AZ engines, offering a unified solution for two common wear points. Its primary advantages lie in simplicity, potential performance improvements, and reduced risk of leaks. However, its aftermarket nature introduces risks of quality inconsistency, limited availability, and the need for thorough compatibility checks. If your PCV system is otherwise healthy and you re confident in the part s quality, this is a worthwhile upgrade. If you re on a tight budget or dealing with broader PCV issues, sourcing individual components or verifying the rest of the system may be preferable.

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### **Recommendation:** - **Buy it if:**

- You re experiencing oil cap leaks or suspect PCV system inefficiency.

- You want a hassle-free replacement that combines two parts.

- You ve confirmed the part fits your exact engine configuration (e.g., no aftermarket modifications affecting the PCV elbow location).

- You re purchasing from a reputable supplier (e.g., Mazda specialty shops, trusted online retailers like RockAuto or eBay with positive reviews).

- **Avoid it if:**

- You re unsure about the part s quality or fitment, and you don t want to risk installation issues.

- Your PCV system has broader problems (e.g., cracked hoses, a faulty PCV valve) that aren t addressed by this single part.

- You can find a better-priced, high-quality alternative (e.g., OEM or aftermarket parts from brands like ACDelco or Mann).

- **Additional Steps:**

- Inspect the rest of your PCV system (hoses, valve) before installation.

- Use a thread-sealer or anti-seize on the oil cap threads if needed.

- Consider upgrading the PCV valve if your engine has high mileage or signs of blow-by.

Details:

Scott Drake D1AZ-6766-C 1970-1973 Oil Cap With PCV Elbow Chrome. This 1970-1973 Mustang Oil Cap is finished in bright polished chrome and includes 2 grommets the PCV elbow for multiple applications.; Menu. Part Number:: Compatible with 1970-1973 Ford Mustang. Buyer pays return shipping.

part #: d1az6766 prices

  • $43.86-$48.82

specifications carlockiio:

  • for years: 1970-1973
  • brand: Scott Drake
  • mpn: D1az-6766-c
  • type: Engines Engine Components Gt; Valve Covers
  • country of origin: China
  • manufacturer warranty: Manufacturers Limited 1 Year
  • upc: 842110155559

shipping carlockiio:

  • type: Fixed
  • cost: $0.00
  • class: Standard
  • carrier: UPS
  • transit: 3-5 Days
  • service: UPS Ground

seller carlockiio:

  • city: Bowling Green, Kentucky
  • # reviews: 54697
  • rating: 99.8%

general carlockiio:

  • Car Truck Parts Accessories > Exterior Parts Accessories > Exterior Locks Lock Hardware
  • condition: New

returns carlockiio:

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

payments carlockiio:

  • credit card: Diners-club
  • other
  • wallet: Google-pay

offer carlockiio:

  • options: Ship-to-home
  • started: April 5, 2026
  • sold: 0
  • availability: In Stock
for years: 1970-1973, type: engines engine components gt; valve covers, country of origin: china, manufacturer warranty: manufacturers limited 1 year,
category: auto parts > car truck parts accessories > exterior parts accessories > exterior locks lock hardware, sku: 30739238412668772,
Scott Drake D1AZ-6766 Is Similar To:
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5 offers $43.86–$48.82 USD
  • New. Offer #1 priced at $43.86 + $11.95 shipping estimate = $55.81* total. This 1970-1973 Oil Cap is finished in black and includes 2 grommets and the PCV elbow for multiple applications.;. Compatible with 1970-1973 Ford Mustang .+$11.95 shipping
  • New. Offer #2 priced at $43.86 + $11.99 shipping estimate = $55.85* total. It even features the "Autolite" logo on the face of the cap! Scott Drake reproduced the Black Autolite Oil Cap -A to include a PCV Elbow for a simple installation that performs and looks just like the original.+$11.99 shipping
  • New. Offer #3 priced at $48.82 + $10.02 shipping estimate = $58.84* total. . This cap is an exact reproduction of the original oil cap finished in black, includes 2 grommets and the PCV elbow.+$10.02 shipping
  • New. Offer #4 priced at $43.86 + $33.14 shipping estimate = $77.00* total. Includes Engraved Auto Lite Logo On Face Of Cap. Oil Filler Cap.+$33.14 shipping
  • New. Offer #5 priced at $51.19 + $14.99 shipping estimate = $66.18* total. Scott Drake Valve Cover Oil Cap, Round, Twist-in, Steel, Chrome, Autolite Top Style, PCV Elbow, Ford, Each.+$14.99 shipping

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