1. Cylinder Heads & Parts Engines Components For Sale
  2. sku: 11734945286400813
  3. MAZDA DG-8614972108

MAZDA DG-8614972108 Cylinder Head BP4W

fits model: Miata. make: Mazda. year: 1999–2000.

Dg-8614972108 Mazda Oem Miata 1999-2000 Bp4w Cylinder Head Used Part

( Manufacturer Part Number: DG-8614972108 ), ( Part Type: Cylinder Head )

Review MAZDA Oem Cylinder Head Used Part fits MIATA 1999–2000

The **Mazda DG-8614972108 Miata (NA) 1999-2000 BP4W Cylinder Head** is a meticulously crafted, high-performance replacement part designed to restore or enhance the reliability and efficiency of your Mazda MX-5 (NA) engine. This cylinder head, built to Mazda s original specifications, features a robust **BP4W (B-series, 4-valve, water-cooled) design**, ensuring optimal airflow and combustion for the iconic 1.8L or 2.0L inline-four engine found in these models. Crafted from precision-machined aluminum, it incorporates four intake and four exhaust valves per cylinder, arranged in a symmetrical 20-degree V configuration, which maximizes valve overlap and enhances engine breathing for improved horsepower and torque. The head is equipped with **high-quality cast iron valve seats** and **stainless steel valves**, providing durability and resistance to heat and wear, while the **piston-to-valve clearance** is carefully engineered to prevent interference during high-performance applications. The **intake manifold ports** are generously sized to facilitate unrestricted airflow, while the **exhaust ports** are optimized for efficient scavenging, contributing to a smoother, more responsive throttle response. This cylinder head is compatible with both **carbureted and fuel-injected** NA Miata engines, making it a versatile upgrade for stock or modified setups. Whether you're restoring a classic Miata to its original glory or pushing it to the limits with a turbocharged or supercharged build, this head delivers the structural integrity and performance potential to meet your demands. Built to withstand the rigors of daily driving or spirited track use, it includes **threaded spark plug holes** and **properly drilled and tapped oil passages** for seamless integration with the engine block. For enthusiasts seeking a balance of authenticity and performance, this cylinder head is an essential component, ensuring your NA Miata runs with the precision and power it was originally designed to deliver.

**Pros and Cons of Buying a 1999-2000 Mazda Miata (NA) 4-Wheel Drive (4W) Cylinder Head (DG-8614972108)**

### **Pros**

1. **Reliability and Performance** The Mazda Miata s NA platform (1990 2005) is well-regarded for its lightweight design, responsive handling, and naturally aspirated 1.6L or 1.8L engine. The 4WD version enhances traction in slippery conditions without sacrificing the car s sporty nature. A properly maintained NA engine is known for longevity, especially with regular oil changes and valve adjustments.

2. **Aftermarket Support** The Miata has a massive aftermarket community, meaning parts like cylinder heads, gaskets, and performance upgrades are widely available. The DG-8614972108 head (likely for the 1.8L engine) is a common OEM part, reducing the risk of compatibility issues.

3. **Cost-Effective Upgrade** Replacing a worn or leaking cylinder head can prevent catastrophic engine failure (e.g., blown head gasket, warped deck, or cracked components). Fixing it early is often cheaper than a full engine rebuild or replacement.

4. **Potential for Increased Power** If the head is in good condition, it may be suitable for mild performance modifications, such as porting, polishing, or installing a high-flow intake manifold. This can improve throttle response and power output.

5. **Compatibility with Other NA Parts** The 1999 2000 4WD Miata shares many components with the 2WD models, making it easier to source parts if needed.

6. **Durability of the 4WD System** While the 4WD system adds weight, it is robust and designed for the Miata s lightweight chassis. If the head replacement is part of a broader maintenance plan, the 4WD drivetrain can be inspected for wear (e.g., transfer case, differential).

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### **Cons**

1. **Age and Wear** The 1999 2000 Miata is nearly 25 years old, meaning the original cylinder head may have accumulated miles and wear. Symptoms like oil burning, coolant leaks, or compression loss could indicate internal damage (e.g., cracked valves, burnt valve seats, or warped decks).

2. **Potential for Hidden Issues** A used cylinder head may have been previously damaged or improperly repaired. Without a thorough inspection (e.g., pressure testing, deck surface check, or valve seat inspection), you risk buying a part that fails shortly after installation.

3. **Labor Intensity** Replacing a cylinder head on an NA Miata requires significant mechanical skill. The process involves removing the engine from the car, disassembling the head, replacing gaskets, and ensuring proper torque specifications. Improper installation can lead to leaks or performance issues.

4. **Cost of Additional Repairs** If the head replacement reveals other engine problems (e.g., worn pistons, rod bearings, or a seized camshaft), the repair bill could escalate quickly. Always budget for a full engine inspection.

5. **Limited Warranty or Guarantee** If purchasing from a private seller, there is no warranty. Even from a dealer or parts store, the warranty may not cover installation errors or pre-existing damage.

6. **Weight Considerations** The 4WD system adds weight compared to a 2WD Miata, which can slightly reduce acceleration and fuel efficiency. However, this is a minor trade-off for improved traction.

7. **Availability of OEM Parts** While the DG-8614972108 head is common, finding an exact match (especially for rare variants or aftermarket upgrades) may require sourcing from specialty suppliers, increasing costs.

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### **Conclusion**

Buying a **1999 2000 Mazda Miata 4WD cylinder head (DG-8614972108)** can be a smart investment if you are addressing a known issue (e.g., head gasket failure, coolant leaks) and have the mechanical skills or access to a trusted mechanic for installation. The NA platform is reliable, and the aftermarket support ensures parts are accessible. However, the age of the car and the potential for hidden engine problems mean you must approach this purchase with caution.

**Key Considerations Before Buying:**

- Verify the head s condition (check for cracks, warping, or internal damage).

- Ensure compatibility with your specific engine (1.6L or 1.8L, 4WD model year).

- Factor in labor costs if you re not doing the work yourself.

- Inspect the rest of the engine (valvetrain, bearings, seals) to avoid surprise repairs.

If the head is in good condition and you re replacing it as part of a planned maintenance or upgrade, it is a worthwhile purchase. If the head is suspect or the engine has other issues, weigh the cost against a full engine rebuild or replacement.

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### **Recommendation**

1. **If you are an experienced mechanic or have access to one:**

- Purchase the head from a reputable supplier (e.g., Mazda parts dealer, eBay with seller feedback, or a trusted aftermarket vendor).

- Inspect it thoroughly (or have it inspected) for cracks, warping, or internal damage.

- Replace it as part of a broader engine service (e.g., new gaskets, valve adjustment, oil pump check).

- Consider upgrading to a **ported and polished head** if you plan on performance modifications.

2. **If you are unsure about the head s condition or lack mechanical experience:**

- Get a **pre-purchase inspection** from a Miata specialist to assess the engine s overall health.

- Compare the cost of the head replacement to a **used NA engine** (which may include a known-good head).

- Explore **aftermarket heads** (e.g., from companies like **Mazdaspeed, JE, or custom builders**) if you re open to non-OEM options for better performance.

3. **If the head is part of a larger project (e.g., engine swap or rebuild):**

- Prioritize sourcing a **complete engine** or a **known-good head-and-block combo** to avoid piecemeal repairs.

- Consider a **1.8L engine** (if your Miata has one) for better power and reliability over the 1.6L.

**Final Verdict:** The DG-8614972108 cylinder head is a practical purchase for Miata owners addressing head-related failures, provided it is inspected and installed correctly. However, always balance the cost against the potential for additional engine work to avoid costly surprises. For long-term reliability, a full engine service or upgrade may be more cost-effective.

Details:

Comes complete with the valve train assembly rocker arms, push rods, and springs but without camshafts, allowing you to install a new cam set or use as core for rebuilding. The head has a clean, machined deck surface ready for decking if desired. Simple return process with prepaid shipping labels. Everything Miata's.

Please review all photos and specifications before purchasing to ensure compatibility with your vehicle. Genuine Mazda part number dg ensures perfect fit and performance. Verified Compatibility: Mazda Miata. Fast Processing.

Compatibility: Mazda Miata/ MX 5 1999 2000. 100% money back including original shipping costs. Inspected Verified: Every part is carefully inspected and tested before listing to ensure it meets our quality standards. All OEM specifications retained.

OEM Mazda Miata 1999 - 2000 BP4W Cylinder Head dg Used Part: Part Overview: High quality cylinder head for 1999 2000 BP4W. This used part has been carefully removed from a donor vehicle, fully inspected, and is free of cracks, warping, or major surface damage.

part #: dg8614972108 prices

  • $749.95-$1200.00

specifications cylinderheapar:

  • for models: Miata
  • for makes: Mazda
  • for years: 1999-2000
  • mpn: Dg-8614972108
  • part type: Cylinder Head

shipping cylinderheapar:

  • cost: $0.00
  • transit: 5-11 Days
  • type: Fixed
  • service: Standard
  • class: Standard

offer cylinderheapar:

  • started: March 14, 2026
  • quantity: 1
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock

payments cylinderheapar:

  • other
  • wallet: Google-pay
  • credit card: Mastercard

seller cylinderheapar:

  • city: Chino, California
  • rating: 0.0%
  • # reviews: 0

general cylinderheapar:

  • Car Truck Parts Accessories > Engines Engine Parts > Cylinder Heads
  • condition: Used

returns cylinderheapar:

  • paid by: Buyer
  • policy: Returns Accepted
  • time: 30 Days
for models: miata, for makes: mazda, for years: 1999-2000, part type: cylinder head,
category: auto parts > car truck parts accessories > engines engine parts > cylinder heads, sku: 11734945286400813,
Mazda DG-8614972108 Is Similar To:
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5 offers $749.95–$1200.00 USD
  • Used. Offer #1 priced at $749.95 + $0.00 shipping estimate = $749.95* total. Fits 99-00 Mazda Miata Models ONLY. 99-00 MAZDA MIATA MX-5 ENGINE MOTOR CYLINDER HEAD -2-2.FREE SHIPPING
  • Remanufactured. Offer #2 priced at $1200.00 + $46.82 shipping estimate = $1246.82* total. New valve stem seals are installed on every head, and valve guides are replaced as necessary. Condition is Remanufactured.+$46.82 shipping
  • Remanufactured. Offer #3 priced at $1200.00 + $46.82 shipping estimate = $1246.82* total. (PCD stands for Polycrystalline Diamond, and is best for aluminum heads). PCD milled to ensure a super smooth finish.+$46.82 shipping
  • Used. Offer #4 priced at $749.95 + $0.00 shipping estimate = $749.95* total. FREE SHIPPING
  • Used. Offer #5 priced at $749.95 + $0.00 shipping estimate = $749.95* total. FREE SHIPPING

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