Airtech Pump Repair Kit — Mechanical Seal + O-Rings (Select Your 3AV Model)

Direct-fit aftermarket Airtech pump repair kit engineered to match OEM fit and service performance for popular Airtech 3AV series pumps. Each kit is built around an OEM-equivalent mechanical seal and the specified O-rings for that pump model (where noted, some O-rings are customer-supplied).

Seal materials (standard build): Carbon/Viton faces with Buna-N O-rings (varies by model selection).

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Choose your pump model (dropdown)

Select the pump 3AV model being repair:

• 3AV95 — Kit: ATSK-3AV95M/OM
  Includes Mechanical Seal #1047.0787 (43mm) + 258 × 2.5 mm O-ring. Notes: shares the same seal and O-ring layout with 3AV130 and 3AV155.

• 3AV130 — Kit: ATSK-3AV130M/OM
  Includes Mechanical Seal #1047.0787 (43mm) + 258 × 2.5 mm O-ring. Notes: shares the same seal and O-ring layout with 3AV95 and 3AV155.

• 3AV155 — Kit: ATSK-3AV155M/OM
  Includes Mechanical Seal #1047.0787 (43mm) + 258 × 2.5 mm O-ring. Notes: shares the same seal and O-ring layout with 3AV95 and 3AV130.

• 3AV255 — Kit: ATSK-3AV255M/OM
  Includes Mechanical Seal #1047.0796 (60mm). Requires (2) customer-supplied 280 × 3 mm O-rings.

• 3AV330 — Kit: ATSK-3AV330M/OM
  Includes Mechanical Seal #1047.0788 / #1047.0581 (70mm) + O-rings: (2) 300 × 3 mm, 62 × 2.5 mm, 12 × 2.5 mm.

• 3AV430 — Kit: ATSK-3AV430M/OM
  Includes Mechanical Seal #1047.0788 / #1047.0581 (70mm). Requires (2) customer-supplied 330 × 3 mm O-rings and verification of O-ring dimensions from a customer sample.

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Ordering tip: Match by pump model + kit number first, then confirm the seal reference number and O-ring sizes listed above for best accuracy.

Quick reference chart

Pump Model	Kit Number	Seal #	Included O-Rings	Notes
3AV95	ATSK-3AV95M/OM	1047.0787 (43mm)	Customer-supplied 258 x 2.5 mm	Same layout used across 95, 130, 155 (positions 47 & 412)
3AV130	ATSK-3AV130M/OM	1047.0787 (43mm)	Customer-supplied 258 x 2.5 mm	Same layout used across 95, 130, 155 (positions 47 & 412)
3AV155	ATSK-3AV155M/OM	1047.0787 (43mm)	Customer-supplied 258 x 2.5 mm	Same layout used across 95, 130, 155 (positions 47 & 412)
3AV255	ATSK-3AV255M/OM	1047.0796 (60mm)	(2) 280 x 3 mm customer-supplied
3AV330	ATSK-3AV330OM/OM	1047.0788 / 1047.0581 (70mm)	(2) 300 x 3 mm, 62 x 2.5 mm, 12 x 2.5 mm
3AV430	ATSK-3AV430M/OM	1047.0788 / 1047.0581 (70mm)	(2) 330 x 3 mm customer-supplied

Explore our full line up of Pump Repair Kits

Looking for more? Check out our Shaft seals, Parts/Accessories & OEM seals

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