Sierra 18-5268 Tune Up Kit for Delco In-Line 4 Single Point Ignition

The Sierra 18-5268 is a complete ignition tune-up kit engineered for Delco In-Line 4 cylinder engines using a single point ignition system, a configuration commonly found on GM 4 cylinder marine engines. Rather than sourcing individual ignition components separately, this kit bundles everything needed to refresh the ignition system in one part number, helping restore reliable spark and smoother running to an aging or worn distributor setup.

Inside the kit, boat owners get one each of four core ignition components: a contact set (breaker points), a condenser, a rotor, and a distributor cap. Each component is manufactured to meet or exceed the original equipment part it replaces, and is built to hold up in the demanding marine environment where heat, vibration, and moisture accelerate ignition component wear. Replacing these parts together as a kit ensures the contact set gap, condenser capacitance, and rotor/cap contact surfaces are all fresh at the same time, which is the recommended approach for single point ignition maintenance since these wear items affect each other's performance.

This kit is designed for engines and applications using the Delco In-Line 4, single point ignition configuration. It is backed by Sierra's Customer Satisfaction Warranty, which covers defects in workmanship and materials for the useful life of the product.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-5268
• Product Type: Ignition Tune-Up Kit
• Engine Application: Delco In-Line 4, Single Point Ignition (GM 4 Cyl.)
• Kit Contents: 1 Contact Set (18-5311), 1 Condenser (18-5345), 1 Rotor (18-5418), 1 Distributor Cap (18-5385)
• Weight: 0.52 pounds
• Product Dimensions: 8 x 6 x 3 inches
• Exterior Finish: Machined
• UPC: 808282234034

Fitment

• Delco In-Line 4 cylinder engines with single point ignition
• GM 4 Cyl. Single point ignition applications

Replaces (OEM)

• GLM 71720

Frequently Asked Questions

What does the Sierra 18-5268 tune-up kit include? The kit contains one each of four ignition components: a contact set (part 18-5311), a condenser (part 18-5345), a rotor (part 18-5418), and a distributor cap (part 18-5385).

What engines does the 18-5268 tune-up kit fit? It is designed for Delco In-Line 4 cylinder engines with a single point ignition system, the type used on GM 4 cylinder single point applications.

Does the 18-5268 kit replace GLM 71720? Yes, Sierra 18-5268 is a direct replacement for GLM 71720.

Do I need to buy the contact set, condenser, rotor, and cap separately? No, all four components come together in the single 18-5268 kit, so there is no need to order the contact set, condenser, rotor, and distributor cap individually.

How much does the 18-5268 tune-up kit weigh? The kit weighs 0.52 pounds.

What are the dimensions of the 18-5268 kit packaging? The packaged kit measures 8 x 6 x 3 inches.

Is the 18-5268 kit designed for single point or electronic ignition? This kit is built for single point ignition systems, specifically the Delco In-Line 4 single point configuration, not electronic ignition.

What finish do the components in the 18-5268 kit have? The components have a machined exterior finish.

Is the Sierra 18-5268 kit covered by a warranty? Yes, the 18-5268 kit qualifies for Sierra's Customer Satisfaction Warranty, which covers defects in workmanship and materials for the useful life of the product.

Why replace the contact set, condenser, rotor, and cap all at once? For single point ignition systems like the one the 18-5268 kit is designed for, these wear components affect each other's performance, so replacing them together as a set restores consistent ignition timing and spark quality rather than addressing one worn part at a time.

What is the UPC for the Sierra 18-5268 tune-up kit? The UPC for the 18-5268 tune-up kit is 808282234034.