Hastings Piston Ring Set | VW Type 4 & Porsche 914 | 90mm 2×2×5 Chrome (98-1233-B)

Hastings Piston Ring Set — 90mm Bore, 2×2×5 Chrome | VW Type 4 & Porsche 914

Hastings piston ring set for 90 mm bore VW Type 4 and Porsche 914 air-cooled engines. Chrome compression rings — Hastings' upgrade material for longer life, better wear resistance, and reduced break-in time compared to cast iron. The 2×2×5 stack identifies this as a Type 4 application, not a Type 1 big-bore. Complete set for a 4-cylinder engine.

Vehicle Fitment

• VW Type 4 (Bus, 1972–1979): 1.7L / 1.8L / 2.0L, 90 mm bore
• Porsche 914: stock 1.7L / 1.8L / 2.0L, 90 mm bore

Pair with matching 90 mm Type 4 pistons during a rebuild.

Why Choose Hastings?

Hastings has been making piston rings in the United States since 1915. Their cast iron and chrome ring sets are a long-standing standard for air-cooled VW engine rebuilds — known for consistent quality and tight gap tolerances out of the box.

Key Features & Benefits

• Chrome compression rings: longer life, better wear resistance, and reduced break-in time compared to cast iron.
• Type 4 fitment: 90 mm bore for VW Type 4 and Porsche 914 engines.
• Complete engine set: covers all four cylinders with tight gap tolerances out of the box.

Technical Specifications

• EMPI Part #: 98-1233-B
• Bore: 90 mm
• Material: Chrome compression rings
• Engine family: VW Type 4 / Porsche 914
• Sold as: Set covers 4 cylinders (one complete engine)

Ring Stack — read before ordering

Hastings rings are specified by their groove widths in millimeters, in the order top compression / second compression / oil control:

• Top compression: 2 mm
• Second compression: 2 mm
• Oil control: 5 mm
• Material: Chrome compression rings

Confirm the ring groove widths cut into your pistons match this stack before ordering. Mismatched ring stacks will not seat properly.

Frequently Asked Questions

• What engines does this fit? The 90 mm bore fits stock VW Type 4 (1.7L / 1.8L / 2.0L, Bus 1972–1979) and Porsche 914 (1.7L / 1.8L / 2.0L) engines.
• Is this for a Type 1 big-bore? No — the 2×2×5 stack identifies this as a Type 4 application, not a Type 1 big-bore.
• How do I confirm it fits my pistons? Match the groove widths cut into your pistons to the 2×2×5 ring stack (2 mm / 2 mm / 5 mm) before ordering.

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