Product photographs
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DOCUMENTED FACTS
Part details
- System
- Drivetrain cv joints
- Models named in the evidence
- Unspecified
- Part type
- Alternative
- Manufacturer part numbers
- 301142
- Price
- £132
- Price checked on
- 2 Aug 2026
- What the price includes
- Price including VAT for one genuine GKN joint kit.
- Supplier price check
- Check price with supplier ↗ (opens in a new tab)
- Availability
- Available
- Availability checked on
- 2 Aug 2026
- How fitment is supported
- Dimensional cross reference
- Evidence strength
- One owner report
- Organisation in the evidence
- Prolinx Suspension Ltd
- Organisation classification
- Current retailer
- Trading/contact status
- Active
- Trading/contact status observed
- 3 Aug 2026
- Organisation website
- https://www.prolinx.biz/
Availability context
Prolinx displayed In Stock and Add to Basket.
Fitment and scope
Prolinx specifies 100 mm outside diameter, 32 mm width, 86 mm bolt PCD and 25 splines. Those dimensions match one owner's recorded Ultima wheel-end joint; Prolinx does not claim Ultima fitment and no model/year is established.
Sources for this part
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Prolinx - GKN 301142 CV joint
Current in-stock listing for genuine GKN 301142 gives 100 mm diameter, 32 mm width, 86 mm bolt PCD and 25 splines; listed donor applications do not include Ultima.
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PistonHeads - Ultima CV-joint dimensions
A public Ultima owner records a 100 x 32 mm, 86 mm PCD, 25-spline wheel-end CV and a 108 x 40 mm, 94 mm PCD, 28-spline transaxle-end CV. This is one owner's dimensional evidence, not a model-wide application table.
Other information about the supplier
These sources concern the supplier or other products. They do not establish fitment for this part.
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Prolinx - GKN 301174 CV joint
Current in-stock listing for genuine GKN 301174 gives 108 mm diameter, 40 mm width, 94 mm bolt PCD and 28 splines; it makes no Ultima fitment claim.