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What repair kit do I need for my ball intake valve?

The exact part number for your valve’s seat or seal kit A quick visual chart by valve prefix, hose-side seal options (if needed), clarity on what is and isn’t included, and how to buy the repair kit you need.

Your TFT intake valve is leaking. You don’t need a whole new valve. You just need the right repair kit. This page gives you:

  • The exact part number for your valve’s seat or seal kit

  • A quick visual chart by valve prefix

  • Hose-side seal options (if needed)

  • Clarity on what is and isn’t included

  • A direct link to order the right kit today

No form. No download. No waiting. Everything’s here.

 

Step 1: Identify Your Valve Prefix

Find the model tag on the gearbox or valve body. You’re looking for a part number prefix like:

Prefix Example Series Name Visual Cue

AB, ABS, ABD, AC, ACS

AB Series (legacy)

May have swiveling or straight elbow

AX, AP, AZ, AQ

Jumbo Series

Bulbous body with or without elbow

AXD, AXE, AZD, AZE

Jumbo Low Profile

Elbow exits downward, loops up

Can’t find the tag? Snap a photo and contact us — we’ll ID it for you.

 

Step 2: Choose the Right Repair Kit

For Basic Leaks (Valve Seat Replacement Only)

Valve Prefix Kit Fixes Includes

AB, ABS, ABD, AC, ACS

 A1520-KIT Leaking past the ball Valve seat, 5"/6" gaskets, grease, Loctite

AX, AP, AZ, AQ, AXD, AXE, AZD, AZE

 A1082-KIT Leaking past the ball Valve seat, 5"/6" gaskets, grease, Loctite

Use this kit if the valve shuts off but water seeps through.

For Full Rebuilds (Internal Seal Issues)

 
Valve Prefix Kit Fixes Includes

AB, ABS, AC, ACS

 A1520-CRK Gearbox or swivel leaks All parts in -KIT + O-rings, cup seals, bearing strips
AX, AP, AZ, AQ, AXD, AXE, AZD, AZE A1082-CRK Gearbox or swivel leaks All parts in -KIT + O-rings, cup seals, bearing strips
All ABD NewForce Series Valves ABD1520-CRK Gearbox or swivel leaks This kit includes the hose side connection seals - no need to order additionally

Note: Typically a complete rebuild will consist of one of the appropriate -CRK kits and the seals and bearing strips associated with the correct Hose Side Connection.

Use these if:

  • Valve leaks when closed and shows signs of PRV or gearbox seepage

  • You’re already disassembling the valve and want to replace all wearable seals

 

Step 3: Match Your Hose-Side Seal

If your intake valve uses a swiveling elbow or large-diameter hose connection (LDH), you may need extra seals to fully stop leaks.

These are not included in the standard -KIT or -CRK repair kits and must be selected separately based on your hose connection type.

Use the chart below to find the exact cup seals, bearing strips, and hose gaskets required for your configuration.

Hose Side Connection Additional LDH Connection Seals

1SP, 3SP

 
  • A1597 - Cup Seal Loaded 4.25
  • A1292 - Bearing Strip 4.25
  • A1291 - Bearing Strip 5.25
  • A1596 - Cup Seal Loaded 5.25

1ST, 3ST, 8NP, 8NR, 8NT

 
  • A1291 - Bearing Strip 5.25
  • A1596 - Cup Seal Loaded 5.25

1SX, 3SX

 
  • A1291 - Bearing Strip 5.25 (6.0 Jumbo)
  • A1596 - Cup Seal Loaded 5.25 (6.0 Jumbo)
8NX
  • A1291 - Bearing Strip 5.25 (6.0 Jumbo)
  • A1596 - Cup Seal 5.25 (6.0 Jumbo)
7NN
  • A1597 - Cup Seal Loaded 4.25
  • A1292 - Bearing Strip 4.25
  • A1291 -Bearing Strip 5.25
  • A1596 - Cup Seal Loaded 5.25
  • V3196 - 3.5" Hose Gasket

7NP, 7HNP

 
  • A1291 - Bearing Strip 5.25
  • VO-248 - NFS Ring O-Ring
  • V3198 - 4" Hose Gasket

7NR, 7HNR

 
  • A1291 - Bearing Strip 5.25
  • VO-248 - NFS Ring O-Ring
  • V3198 - 4" Hose Gasket

7NT, 7HNT

 
  • A1291 - Bearing Strip 5.25
  • A1596 - Bearing Strip 5.25
  • V3220 - 5" Hose Gasket
7HNX
  • A1290 - Bearing Strip 7.0
  • V3240 - 6" NH Hose Gasket

 

Step 4: Identify Optional Tools & Related Kits

Some valve rebuilds require additional tools or specialty kits not included in the standard -KIT or -CRK packages. If you’re servicing or removing specific components, consider these items:

Repair Kit Description
THA401-KIT Coupling Bearing Strip Removal Tool
THA406-KIT Seat Ring Removal Tool (All series except AN)
THA409-KIT Seat Ring Removal Tool for AN and ABD series
THA081-KIT Seat Ring Removal Tool for AXD and AXE valves with 5" Truck Side Coupling
A1621-KIT Vent/Drain Kit
PRV-KIT Rebuild Kit for PRVs manufactured after 6/2012
A4178-KIT 4" Storz Lock Lever Replacement Kit (for couplings made after 01/2004)
A4179-KIT 5" Storz Lock Lever Replacement Kit (for couplings made after 06/2003)