Hastings Ring Set — 94mm, 1.75×2×4 Cast Iron | VW Type 1 & Type 4 (98-1235-B)
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Hastings Piston Ring Set — 94mm Bore, 1.75×2×4 Cast Iron — VW Type 1 & Type 4 (98-1235-B)
Hastings piston ring set for 94mm bore VW Type 1 & Type 4. The 1.75 mm top is a Type 4-style ring stack on a 94 mm bore, common on certain aftermarket piston/cylinder kits. The cast iron compression rings are Hastings' standard street-quality material. Complete set for a 4-cylinder engine.
Important — read before ordering: Hastings rings are specified by groove width (top compression / second compression / oil control). This is a 1.75 mm top / 2 mm second / 4 mm oil stack. Confirm the ring groove widths cut into your pistons match this stack before ordering. The three 94 mm sets (1.5 / 1.75 / 2 mm top) are NOT interchangeable.
Vehicle Fitment
- VW Type 1 (Beetle, Bus, Karmann Ghia): 94 mm bore kits with pistons machined for a 1.75 mm top compression groove
- VW Type 4 / 914 applications: common on certain 94 mm Type 4 builds
- Pairing: match with 94 mm pistons cut for this ring stack
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
- Cast Iron compression rings: Hastings' standard street-quality material
- Complete engine set: covers all 4 cylinders (one full engine)
- Consistent quality: known for tight gap tolerances out of the box
Technical Specifications
- Bore: 94 mm
- Ring stack (top / second / oil): 1.75 mm / 2 mm / 4 mm
- Top compression: 1.75 mm
- Second compression: 2 mm
- Oil control: 4 mm
- Material: Cast Iron compression rings
- Coverage: 4 cylinders (one complete engine)
- EMPI Part #: 98-1235-B
Frequently Asked Questions
- What is the ring stack for this set? The groove widths are 1.75 mm top compression / 2 mm second compression / 4 mm oil control, in cast iron compression rings.
- How many cylinders does the set cover? All four — the set is one complete engine.
- How do I know it will fit my pistons? Confirm the ring groove widths machined into your pistons match this stack before ordering. The three 94 mm sets (1.5 / 1.75 / 2 mm top) are NOT interchangeable.