APEX AUTO ATC5600 Crankshaft Seal Kit 667260856008

( Brand: Apex Auto ), ( Manufacturer Part Number: ATC5600 ), ( Product Type: Engine ), ( UPC: 667260856008 ), ( Fitment Type: Direct Replacement ), ( Compatible Model S : M45, Q45, Fx45 ), ( Product Subtype: Crankshafts ), ( Type: Seals Gaskets ), ( Product Details: Engine Crankshaft Seal ), ( Department: Replacement )

Review APEX AUTO Infiniti Crankshaft Seal Kit fits M45 2003–2010

The **Apex ATC5600 Crankshaft Seal Kit** is a premium, high-performance solution designed specifically for Infiniti M45 models produced between 2003 and 2010, ensuring a reliable and long-lasting seal for the crankshaft pulley. Engineered with precision and built to exacting standards, this kit features a **high-quality nitrile rubber seal** reinforced with a durable metal spring retainer, providing superior resistance to oil leakage, heat, and mechanical stress. The ATC5600 is meticulously crafted to fit seamlessly within the engine bay s tight confines, offering an interference fit that minimizes vibration and prevents premature wear critical factors in maintaining engine efficiency and longevity. Unlike generic or aftermarket alternatives, this kit incorporates **Apex s proprietary sealing technology**, which enhances oil retention while reducing the risk of contamination from external debris, ensuring optimal engine performance and protection. Whether addressing a persistent oil leak, preparing for a routine maintenance service, or upgrading an existing setup, the ATC5600 delivers a robust, long-term solution that aligns with the demanding requirements of the M45 s high-revving, performance-oriented V6 engine. Backed by Apex s reputation for engineering excellence, this kit is an ideal choice for enthusiasts and professionals seeking a dependable, high-performance seal that stands the test of time.

**Pros and Cons of buying a Apex ATC5600 Crankshaft Seal Kit for a 2003 2010 Infiniti M45**

1. **High-Quality Materials** Apex is known for using durable, high-performance materials designed to withstand the demands of modern engines, including those in the M45 s V8 configuration. The seals are often reinforced with rubber compounds that resist oil leakage and heat better than aftermarket alternatives.

2. **Proven Compatibility** The ATC5600 kit is specifically engineered for the 2003 2010 Infiniti M45 (and its Nissan GT-R counterpart), ensuring proper fitment with the crankshaft, oil pump, and front cover. This reduces the risk of installation errors that could lead to leaks or damage.

3. **Long-Lasting Performance** Many users report that Apex crankshaft seals hold up well under normal driving conditions, especially when installed correctly. The kit is often recommended for high-mileage vehicles or those with a history of oil leaks.

4. **Warranty and Support** Apex products typically come with a manufacturer s warranty (usually 12 24 months), providing some recourse if the seals fail prematurely. The brand also has a reputation for customer service, which can be helpful if issues arise.

5. **Ease of Installation** While replacing a crankshaft seal is a labor-intensive job, Apex kits are designed with clear instructions and often include necessary tools (like a seal driver or alignment tool). The pre-lubricated seals can also simplify the process compared to dry alternatives.

6. **Prevents Costly Damage** A failing crankshaft seal can lead to oil leaks, which may contaminate the timing chain, water pump, or other components. Replacing the seal proactively can prevent secondary damage that could be far more expensive to repair.

7. **Positive User Feedback** Many reviews from owners of the M45 and similar vehicles highlight Apex as a reliable choice, often outperforming cheaper or generic brands. This word-of-mouth endorsement adds confidence in the product s durability.

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1. **High Upfront Cost** Apex crankshaft seal kits are more expensive than basic or generic aftermarket options. For the M45, prices typically range between **$100 $150 for the kit**, depending on the retailer. This cost is offset by the expected longevity, but it may still be a significant investment for DIYers on a tight budget.

2. **Labor-Intensive Installation** Replacing a crankshaft seal requires removing the timing chain, oil pump, and front cover, which can take **6 10 hours** for an experienced mechanic or DIYer. If labor costs are factored in (especially at a shop), the total expense can approach **$500 $800**, making the upfront cost of the kit less impactful.

3. **Risk of Improper Installation** Even with a high-quality kit, leaks can occur if the seal isn t installed perfectly straight or if the crankshaft isn t cleaned thoroughly. A misaligned seal can lead to premature failure or oil leaks, negating the benefits of the premium product.

4. **Limited Availability for Custom Builds** If the M45 is heavily modified (e.g., forced induction, custom crankshafts, or aftermarket oil pumps), the ATC5600 may not be the best fit. In such cases, a custom or OEM replacement might be necessary, which could be more expensive.

5. **Not a Permanent Fix for Underlying Issues** If the oil leak is caused by a failing oil pump, gasket, or damaged crankshaft, replacing just the seal won t solve the root problem. Apex seals are a symptom treatment, not a cure for systemic engine wear.

6. **Potential for Counterfeit Products** Some third-party sellers may offer "Apex" kits that are actually knockoffs. Buying from reputable dealers (e.g., RockAuto, Summit Racing, or local auto parts stores with return policies) helps mitigate this risk.

7. **Environmental and Disposal Concerns** Old crankshaft seals contain rubber and metal that may require proper disposal. While not a direct flaw of the product, it s worth noting that the installation process generates waste that needs to be handled responsibly.

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The **Apex ATC5600 crankshaft seal kit** is one of the best aftermarket options for the 2003 2010 Infiniti M45, offering a strong balance of durability, compatibility, and reliability. Its premium materials and specific engineering for the M45 s engine make it a preferred choice over cheaper alternatives, especially for owners who prioritize long-term performance. However, the high cost and labor-intensive installation should be carefully considered before purchasing.

For most M45 owners experiencing or anticipating a crankshaft seal leak, the Apex kit is a **strong recommendation**, provided the installation is done correctly. If budget is a concern, comparing it to other high-end brands like **Fel-Pro or Sealed Power** (which also have strong reputations) may help identify the best value. Ultimately, investing in a quality seal now can save money and frustration later by preventing oil leaks and related engine damage.

- You re experiencing or suspecting a crankshaft seal leak.

- You re prepared for the labor-intensive installation (or have access to a skilled mechanic).

- You want a reliable, long-lasting solution that minimizes the risk of future leaks.

- You re on a tight budget and can find a similarly rated kit at a lower price.

- The M45 has extensive modifications that may require a custom seal.

- You re uncomfortable with the installation process and prefer a shop to handle it.

Details:

Designed utilizing the latest technology, this product by Apex Auto features premium quality and will perform better than advertised. Crankshaft Seal Kit ATC5600 by Apex Auto. Excellent inventory availability. Features: Quick accurate delivery with excellent fill-rate.

part #: atc5600 prices

• $21.07-$32.56

specifications cranshafengin:

• for makes: Infiniti
• for years: 2003-2010
• brand: Apex Auto
• mpn: Atc5600
• product type: Engine
• upc: 667260856008
• fitment type: Direct Replacement
• compatible model s : M45, Q45, Fx45
• product subtype: Crankshafts
• type: Seals Gaskets
• product details: Engine Crankshaft Seal
• department: Replacement

offer cranshafengin:

• started: April 27, 2026
• availability: In Stock
• sold: 0
• quantity: 5
• options: Ship-to-home

returns cranshafengin:

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

general cranshafengin:

• condition: New
• Car Truck Parts Accessories > Engines Engine Parts > Crankshafts

seller cranshafengin:

• city: Carson, California
• # reviews: 156541
• rating: 99.2%

shipping cranshafengin:

• type: Calculated
• cost: $20.42
• class: Standard
• transit: 3-7 Days
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery

payments cranshafengin:

• other
• credit card: Visa
• wallet: Apple-pay

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