Beat-a-Price Guarantee - You Find It, We'll Beat It!

Beat-a-Price Guarantee - You Find It, We'll Beat It!

Save Now on Select Stock Replacement Parts!

Filters

  • In Stock
  • Bore (in.)
  • Bore (mm)
  • Stroke
  • Actual Engine Displacement
  • Rod Length
  • Compression Height (in.)
  • Piston Head Volume (cc)
  • Pin Diameter (in.)
  • Filter Options

Selected Filters

Availability

  • Filters

  • Bore (in.)
  • Bore (mm)
  • Stroke
  • Actual Engine Displacement
  • Rod Length
  • Compression Height (in.)
  • Piston Head Volume (cc)
  • Pin Diameter (in.)
  • Filter Options

BUICK 3.8L/231 Pistons

Showing In Stock Items. Show All 42 Items.

Individual Parts
Part Groups

Results 1 - 25 of 30

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6203-3840

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6203-3840

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6203-3840

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -15cc Buick Dish Top Piston Set. 3.840 bore

Part Number: DMS-K3-6203-3840

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6215-3830

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6215-3830

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6215-3830

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -29cc Buick Dish Top Piston Set. 3.830 bore

Part Number: DMS-K3-6215-3830

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6215-3840

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6215-3840

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6215-3840

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -29cc Buick Dish Top Piston Set. 3.840 bore

Part Number: DMS-K3-6215-3840

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6223-3800

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6223-3800

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6223-3800

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -15cc Buick Dish Top Piston Set. 3.800 bore

Part Number: DMS-K3-6223-3800

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6223-3810

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6223-3810

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6223-3810

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -15cc Buick Dish Top Piston Set. 3.810 bore

Part Number: DMS-K3-6223-3810

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6223-3820

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6223-3820

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6223-3820

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -15cc Buick Dish Top Piston Set. 3.820 bore

Part Number: DMS-K3-6223-3820

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6223-3830

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6223-3830

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6223-3830

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -15cc Buick Dish Top Piston Set. 3.830 bore

Part Number: DMS-K3-6223-3830

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6223-3840

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6223-3840

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6223-3840

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -15cc Buick Dish Top Piston Set. 3.840 bore

Part Number: DMS-K3-6223-3840

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6225-3800

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6225-3800

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6225-3800

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -29cc Buick Dish Top Piston Set. 3.800 bore

Part Number: DMS-K3-6225-3800

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6225-3810

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6225-3810

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6225-3810

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -29cc Buick Dish Top Piston Set. 3.810 bore

Part Number: DMS-K3-6225-3810

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6225-3820

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6225-3820

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6225-3820

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -29cc Buick Dish Top Piston Set. 3.820 bore

Part Number: DMS-K3-6225-3820

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6225-3830

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6225-3830

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6225-3830

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -29cc Buick Dish Top Piston Set. 3.830 bore

Part Number: DMS-K3-6225-3830

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6225-3840

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6225-3840

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6225-3840

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -29cc Buick Dish Top Piston Set. 3.840 bore

Part Number: DMS-K3-6225-3840

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6203-3800

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6203-3800

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6203-3800

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -15cc Buick Dish Top Piston Set. 3.800 bore

Part Number: DMS-K3-6203-3800

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6203-3810

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6203-3810

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6203-3810

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -15cc Buick Dish Top Piston Set. 3.810 bore

Part Number: DMS-K3-6203-3810

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6203-3820

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6203-3820

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6203-3820

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -15cc Buick Dish Top Piston Set. 3.820 bore

Part Number: DMS-K3-6203-3820

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6203-3830

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6203-3830

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6203-3830

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -15cc Buick Dish Top Piston Set. 3.830 bore

Part Number: DMS-K3-6203-3830

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6205-3800

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6205-3800

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6205-3800

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -29cc Buick Dish Top Piston Set. 3.800 bore

Part Number: DMS-K3-6205-3800

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6205-3810

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6205-3810

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6205-3810

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -29cc Buick Dish Top Piston Set. 3.810 bore

Part Number: DMS-K3-6205-3810

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6205-3820

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6205-3820

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6205-3820

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -29cc Buick Dish Top Piston Set. 3.820 bore

Part Number: DMS-K3-6205-3820

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6205-3830

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6205-3830

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6205-3830

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -29cc Buick Dish Top Piston Set. 3.830 bore

Part Number: DMS-K3-6205-3830

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6205-3840

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6205-3840

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6205-3840

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -29cc Buick Dish Top Piston Set. 3.840 bore

Part Number: DMS-K3-6205-3840

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6213-3800

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6213-3800

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6213-3800

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -15cc Buick Dish Top Piston Set. 3.800 bore

Part Number: DMS-K3-6213-3800

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6213-3810

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6213-3810

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6213-3810

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -15cc Buick Dish Top Piston Set. 3.810 bore

Part Number: DMS-K3-6213-3810

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6213-3820

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6213-3820

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6213-3820

Piston Set, 231 V6 & GN Buick V6 & Grand National K3-FX Series -15cc Buick Dish Top Piston Set. 3.820 bore

Part Number: DMS-K3-6213-3820

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

Modal Header

Call To Order

This is a custom order part. You can order this part by Contacting Us.

Summit Racing Speedcard. Synchrony Car Care.

Summit Racing Equipment SpeedCard

Jumpstart Your Next Project!

View Details|See if you Prequalify