1. Speedometers For Sale
  2. sku: 22006425541341741
  3. MAZDA DN4J-68-H50

MAZDA DN4J-68-H50 Pad Rear Head Impact

fits make: Mazda.

Dn4j-68-h50 Mazda Genuine Pad R Rear Head Impact

( Manufacturer Part Number: DN4J-68-H50 ), ( Part Type: Pad Impact Head ), ( Genuine Oem: Yes ), ( Warranty: 1 Year ), ( Fitment Type: Direct Replacement )

Review MAZDA Genuine Pad Rear Head Impact

The **Mazda DN4J-68-H50 Pad** is a high-performance, precision-engineered rear head impact absorber designed specifically for Mazda vehicles, offering superior protection and structural integrity during high-speed collisions. Crafted from a proprietary blend of ultra-high-strength, heat-resistant composite materials, this pad is engineered to absorb and dissipate kinetic energy with exceptional efficiency, reducing the risk of catastrophic damage to critical structural components such as the rear subframe, B-pillars, and fuel system. Its robust construction ensures optimal rigidity under normal driving conditions while providing a controlled yield point during impact, helping to maintain vehicle stability and occupant safety. The DN4J-68-H50 features a meticulously contoured design that conforms seamlessly to the Mazda DN4J platform s rear header panel and suspension mounts, minimizing gaps and maximizing energy absorption across a broad impact spectrum. Reinforced with advanced adhesive bonding and high-tensile steel reinforcements, this pad is resistant to environmental degradation, ensuring long-term durability even in extreme temperatures or corrosive conditions. Whether installed for crash testing, rollover protection, or reinforcement in high-performance applications, the DN4J-68-H50 Pad delivers a balance of strength, precision, and reliability, making it an indispensable component for enthusiasts and professionals seeking to enhance their Mazda s structural integrity without compromising performance.

### **Pros and Cons of Buying a Mazda DN4J-68-H50 (Pad Rear Head Impact) Used Car**

#### **Overview**

The Mazda DN4J-68-H50 is a **1998 2002 Mazda Proteg (DC)** with a **68-series automatic transmission** and a **H50 engine (1.8L 4-cylinder)**. The "Pad Rear Head Impact" designation indicates that the vehicle has undergone a **structural reinforcement** to improve safety in rear-end collisions, which is a common modification in used Japanese cars to meet stricter crash standards.

---

### **Pros**

1. **Reliable Engine (H50)**

- The **1.8L H50 engine** is known for its durability, especially in Japanese models. It is a **fuel-injected, overhead-cam (SOHC) 4-cylinder** with a **double wishbone front suspension**, which is simpler and more maintainable than some modern engines.

- With proper maintenance, it can easily last **200,000 miles** if the **timing belt, spark plugs, and coolant system** are regularly serviced.

- The **overhead cam design** means fewer moving parts compared to some older engines, reducing long-term wear.

2. **Automatic Transmission (68-Series)**

- The **68-series automatic** is a **strong, smooth-shifting transmission** that is less prone to failure compared to some other Japanese automatics of the era (e.g., early Aisin A340s).

- It is **easier to repair** than some modern automatics, with **cheaper parts** available.

- If well-maintained, it can last **150,000 200,000 miles** before major issues arise.

3. **Moderate Fuel Efficiency**

- The **H50 engine** typically achieves **25 30 MPG in the city** and **35 40 MPG on the highway**, which is decent for a small sedan.

- The **automatic transmission** helps with fuel economy compared to a manual.

4. **Affordable Maintenance & Parts**

- **Labor costs** in Japan are lower than in the U.S., and **used parts** (especially from Japan) are often **cheap and readily available**.

- Common issues (e.g., **water pump, timing belt, suspension bushings**) have **abundant aftermarket and OEM replacements**.

- **No complex hybrid or turbo systems** to worry about, making repairs simpler.

5. **Comfortable & Practical for Daily Use**

- The **Proteg (DC)** has a **spacious interior** for its size, with **good rear legroom** and a **reasonable trunk (12.3 cu. ft.)**.

- The **soft suspension** makes for a **smooth ride**, though it may feel slightly **soft on rough roads**.

- **Manual climate control** (no automatic AC) is standard, but it is **easy to replace** if needed.

6. **Pad Rear Head Impact Modification**

- The **"Pad Rear Head Impact"** reinforcement suggests that the car has been **structurally strengthened** to meet **stricter crash safety standards** (similar to **JNCAP or Euro NCAP** requirements).

- This modification **reduces the risk of structural failure** in a rear-end collision, making it **safer than a standard DN4J**.

- Many used Japanese cars from this era were **retrofitted** with such reinforcements, so this is a **positive sign** of the seller s attention to safety.

7. **Good Resale Value for a Used Japanese Car**

- The **H50 engine and 68-series auto** are **popular in the used market**, so parts and mechanics familiar with them are **widely available**.

- Unlike some **overbuilt or niche Japanese cars**, this model has a **steady demand**, making it easier to sell later.

8. **No Major Known Electronic Issues**

- Unlike some **1990s early 2000s Japanese cars** (e.g., some Nissan or Toyota models with **early ECU problems**), the **H50 engine and 68-series auto** have **fewer reported electronic failures**.

- **No known major recalls** related to this specific combination.

---

### **Cons**

1. **Aging Suspension & Wear Items**

- The **front and rear suspension** (including **control arms, bushings, and shocks**) will likely need **replacement at some point**, especially if the car has **high mileage (150,000 miles)**.

- **Rust** can be an issue in **snowy or coastal regions**, particularly in the **wheel wells, rocker panels, and undercarriage**. Always **check for rust** before buying.

- **Power steering fluid leaks** are common **check for fluid leaks** under the hood and **test the steering effort**.

2. **Timing Belt & Water Pump Maintenance**

- The **timing belt** must be **replaced every 60,000 100,000 miles** (depending on maintenance records). **Failure can cause catastrophic engine damage**.

- The **water pump** is often **integrated with the timing belt** if the belt is replaced, the water pump should be **checked or replaced at the same time**.

- **Coolant leaks** can occur from the **thermostat housing or radiator**, leading to **overheating**.

3. **Automatic Transmission Wear**

- The **68-series auto** is **strong but not indestructible**. At **high mileage (150,000 miles)**, watch for:

- **Slipping gears** (common in older automatics).

- **Delayed engagement** when shifting.

- **Leaking transmission fluid** (check for **red fluid under the car**).

- **Fluid changes** should be done **every 60,000 90,000 miles** to extend transmission life.

4. **Manual Climate Control Limitations**

- The **non-automatic AC** means you must **manually adjust temperature and fan speed**, which can be **inconvenient in extreme weather**.

- **AC compressor failure** is possible with age **check for refrigerant leaks** and **test the AC** before buying.

5. **Rust & Body Condition**

- **Japanese cars from the late 1990s/early 2000s** can develop **rust in high-exposure areas** (e.g., **wheel arches, sills, under the doors**).

- **Check for rust** by **lifting the car** and inspecting the **floor pans, subframe, and rear quarter panels**.

- **Dent damage** from accidents (even minor ones) can **weaken the structure** look for **misaligned panels or uneven gaps**.

6. **Limited Power & Performance**

- The **H50 engine produces only 100 110 horsepower**, which is **adequate for city driving but weak for highway passing or towing**.

- **No turbo or high-performance variants** this is a **basic economy car**, not a sporty or high-revving machine.

- **Acceleration is sluggish** compared to modern cars, which may be noticeable in **traffic or on highways**.

7. **No Modern Safety Features**

- **No ABS, no airbags (or only driver-side airbag in some markets), no traction control**.

- **No stability control** handling can be **less predictable in slippery conditions**.

- **No modern driver aids** (e.g., blind-spot monitoring, lane-keeping assist).

8. **Potential for Hidden Mechanical Issues**

- **Always get a pre-purchase inspection (PPI)** from a **Japanese car specialist** before buying.

- **Common issues to check:**

- **Suspension bushings** (worn-out bushings cause **clunks over bumps**).

- **CV joints** (check for **grease leaks** and **play in the driveshafts**).

- **Exhaust leaks** (can cause **carbon monoxide buildup** in the cabin).

- **Brake system** (check **brake pads, rotors, and fluid** for leaks).

9. **Fuel & Emissions Compliance**

- If you plan to **drive this in the U.S. long-term**, check **local emissions regulations** some states **require smog checks**, and older cars may **fail due to high emissions**.

- **Gasoline quality** in the U.S. is different from Japan **use a fuel stabilizer** if storing the car for long periods.

10. **Depreciation & Longevity Concerns**

- While the **H50 engine is reliable**, **modern cars are more efficient and safer**, so **long-term ownership may not be as cost-effective** as a newer used car.

- If you **keep it for 10 years**, **parts may become harder to find** as older models phase out.

---

### **Conclusion & Recommendation**

#### **Who Should Buy This Car?**

**Best for:**

- **Budget-conscious buyers** who want a **reliable, low-maintenance daily driver**.

- **Those who prioritize simplicity

Details:

Electrical parts are not returnable. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Parts must be resalable and in the original packaging.

part #: dn4j68h50 price

  • $26.18

specifications carspeedometeriz:

  • for makes: Mazda
  • mpn: Dn4j-68-h50
  • part type: Pad Impact Head
  • genuine oem: Yes
  • warranty: 1 Year
  • fitment type: Direct Replacement

shipping carspeedometeriz:

  • transit: 6-14 Days
  • service: Standard
  • class: Standard
  • cost: $9.99
  • type: Fixed

payments carspeedometeriz:

  • wallet: Google-pay
  • credit card: Mastercard
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offer carspeedometeriz:

  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
  • quantity: 4
  • started: February 8, 2026

returns carspeedometeriz:

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

general carspeedometeriz:

  • Car Truck Parts Accessories > Interior Parts Accessories > Headliners Parts
  • condition: New

seller carspeedometeriz:

  • rating: 98.6%
  • # reviews: 941
  • city: Port Charlotte, Florida
for makes: mazda, part type: pad impact head, genuine oem: yes, warranty: 1 year, fitment type: direct replacement,
category: auto parts > car truck parts accessories > interior parts accessories > headliners parts, sku: 22006425541341741,
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  • New. Offer #1 priced at $26.18 + $9.99 shipping estimate = $36.17* total. Genuine Mazda Parts.+$9.99 shipping

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