SX-H958 NATIONAL Front Engine Crankshaft Seal Van G30

Review NATIONAL Front Engine Crankshaft Seal For Chevrolet Van Il for CHEVROLET G30 1973–1974

Introducing the National SX-H958 Front Engine Crankshaft Seal, specifically designed for 1973-1974 Chevrolet G30 vans. This essential component is manufactured to meet the highest standards of quality and durability to ensure a reliable seal between the engine crankshaft and the oil pan.

The National SX-H958 Crankshaft Seal is made from a high-performance elastomer material that provides excellent sealing performance in both wet and dry conditions. The material is engineered to withstand the rigors of continuous engine operation, resisting wear, tear, and oil swell for an extended service life.

The seal features a robust design with an inner and outer lip that creates a tight seal around the crankshaft. The inner lip is precision-machined to ensure a perfect fit onto the crankshaft, while the outer lip seals against the engine block or oil pan to prevent leakage. The seal's lip design provides superior sealing performance in both new and rebuilt engines.

Installation of the National SX-H958 Crankshaft Seal is a straightforward process. The seal comes with an installation tool, making the installation process easier and more efficient. Users can simply remove the old seal, install the new one using the provided tool, and then tighten the retaining bolts to secure the seal in place.

This crankshaft seal is an excellent choice for professional mechanics, DIY enthusiasts, and anyone who wants to maintain or restore their 1973-1974 Chevrolet G30 van. By providing a reliable seal between the crankshaft and the oil pan, the National SX-H958 Crankshaft Seal ensures optimal engine performance and helps prevent costly oil leaks.

In summary, the National SX-H958 Front Engine Crankshaft Seal for 1973-1974 Chevrolet G30 vans is a high-quality, durable, and easy-to-install component designed to provide reliable engine sealing performance and prevent costly oil leaks.

Buying a national SX-H958 front engine crankshaft seal for a 1973-1974 Chevrolet G30 van can be a necessary repair for preventing oil leaks. Here are some pros and cons to consider before making the purchase.

1. Effective Leak Prevention: A new crankshaft seal will prevent oil from leaking out of the engine, reducing the risk of engine damage and saving you money on potential repairs.

2. Improved Performance: A leaking crankshaft seal can cause poor engine performance, such as rough idling or decreased power. Replacing the seal can improve the vehicle's overall performance and fuel efficiency.

3. Peace of Mind: Knowing that your engine is properly sealed and free from leaks can give you peace of mind and confidence in your vehicle's reliability.

1. Cost: The cost of a new crankshaft seal can vary, but it is generally an affordable repair. However, if you are on a tight budget, the cost may be a consideration.

2. Labor Costs: If you are not comfortable performing the repair yourself, you will need to pay for labor costs to have it done at a shop.

3. Time: Replacing a crankshaft seal can take some time, especially if you are doing the repair yourself and are not experienced.

Considering the pros and cons, purchasing a national SX-H958 front engine crankshaft seal for a 1973-1974 Chevrolet G30 van is a worthwhile investment. Preventing oil leaks and improving engine performance can save you money in the long run and give you peace of mind. If you are not confident in your ability to perform the repair yourself, consider having it done at a reputable shop.

If you are experiencing oil leaks from your 1973-1974 Chevrolet G30 van or notice a decrease in engine performance, it is recommended to replace the crankshaft seal as soon as possible. A new seal can prevent further damage and save you money on potential repairs. If you are unsure about the repair process, consider taking your vehicle to a reputable mechanic for assistance.

Details:

National front engine crankshaft seal for 1973-1974 Chevrolet G30 van il: status: in stock.

specifications differentialsdepo:

• for makes: Chevrolet
• for years: 1973–1974
• brand: National
• mpn: Sx-h958
• placement on vehicle: Engine Gaskets Sealing Systems
• type: Engine Crankshaft Seal
• item length: 3.250
• manufacturer warranty: 1 Year
• ipn: C520 47-49
• compatible model: G30 Van
• compatible year: 1974 1973
• core charge: Free No Core Charge
• position: Front
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine National Engine Crankshaft Seal

payments differentialsdepo:

• credit card: mastercard
• other
• wallet: paypal

shipping differentialsdepo:

• class: standard, expedited
• transit: 4-7 days
• service: standard, expedited
• type: fixed

offer differentialsdepo:

• availability: in stock
• price: $17.66
• item condition: New
• options: ship-to-home
• sold #: 12
• started: november 29, 2025
• in stock #: 1

seller differentialsdepo:

• city: indianapolis, indiana
• rating: 99.2%
• # reviews: 598782

general differentialsdepo:

• category: Auto Parts > Transmission Drivetrain > Differentials, Assemblies > Additional

returns differentialsdepo:

• time: 30 days
• paid by: seller
• policy: returns accepted