Engine Full Gasket Set with Head Bolts 12558178 12617944 12612350 12630223 12633904 for LS1 LS2 LS3 LS4 LS5 LS6 4.8L 5.3L 5.7L 6.0L 

Provides a complete engine resealing solution with gaskets and head bolts, reducing repeat repairs and downtime while helping prevent oil leaks, coolant leaks, and sealing failures for GM LS V8 engines.

Item NameEngine Full Gasket Set
OE Number12558178 12617944 12612350 12630223 12633904
Car ModelFor GM
MOQ20 Sets
Size/
Weight2.0kg
Delivery TimeUsually 30–60 Days

Need a Quotation?

We will reply within
12 hours

Share this product

Key Features

  • Complete Engine Overhaul Gasket Kit: Includes cylinder head gaskets, valve cover gaskets, intake and exhaust manifold gaskets, timing cover gaskets, oil pan gasket, crankshaft seal, various sealing rings, O-rings, and head bolts, providing essential components for complete engine resealing and overhaul service for GM LS 4.8L, 5.3L, 5.7L, and 6.0L engines.
  • Reliable Engine Sealing Performance: Restores proper sealing between major engine components, helping prevent oil leaks, coolant leaks, combustion gas leakage, and pressure loss caused by aged or damaged gaskets while supporting stable engine operation for LS-series V8 engines.
  • One-Time Repair Solution: Replaces major engine sealing components and cylinder head bolts in a single repair, reducing repeat disassembly, minimizing repair downtime, and helping prevent common issues such as head gasket failure, oil leakage, coolant leakage, and engine sealing problems.
  • OE-Equivalent Fit: Designed to match original equipment specifications for GM LS1, LS2, LS3, LS4, LS5, LS6 4.8L, 5.3L, 5.7L, and 6.0L V8 engines, ensuring accurate installation, reliable sealing performance, and proper fit without additional modifications.

About GELWERK

25+ Years Experience

Engine kits specialist

Strict Quality Control

100% Inspection

OEM/ODM Service

Flexible custom solution

Fast Global Delivery

Reliable Shipping

Professional Team

Fast responsive support

FAQ

What is your estimated delivery time?

Orders with stock can be shipped within 7 days, while OEM / customized orders typically take around 30-45 days for delivery. Customized sample orders are delivered within 15-25 days. For specific delivery times, you can consult us to confirm the exact delivery date.

Do you have products available in stock?

Yes, we maintain a large stock (500,000 units) to fulfill your orders promptly. Whether you need bulk items or specific parts, our extensive inventory allows for fast and reliable delivery, ensuring your production stays on track.

Do you offer custom / OEM orders?

Absolutely! We accept custom orders tailored to your specific requirements. Our dedicated technical team is available to assist with design, helping you create the perfect solution for your business needs. From initial concepts to final production, we’re here to support you.

What certifications does GELWERK have?

GELWERK operates under a quality management system certified to ISO/TS 16949:2009 and ISO 9001 standards, ensuring consistent product quality and reliable manufacturing processes.

What shipping methods do you offer?

For bulk orders, we typically ship by sea, and you can choose from nearby ports such as Shanghai Port and Ningbo Port. For sample orders, we usually ship via express couriers such as FedEx, DHL, TNT, etc.

Can I get a sample, and is it free?

Yes, we can provide samples for you, whether it’s a standard product or a custom product. However, we will charge for custom products based on the specific requirements.

What payment methods do you accept?

Our payment method: T/T, WEST UNION, PAYPAL.

How can I reach the customer service?

Our online customer service is available anytime on our website to provide you with professional and prompt assistance. Alternatively, you can email us at biz@cnspeedway.com or reach us on WhatsApp at +86-13758194294.