B&G Gasket Repair Kit GD-124 for Primeline Sprayers & Extenda-Ban Valves — 12‑Part Service Kit, Genuine Seals

The B&G Gasket Repair Kit (GD-124) is a complete 12-part service set designed to replace worn seals, springs, and the plunger cup so your Primeline sprayer and Extenda-Ban valve perform reliably.

Keeping commercial sprayers operating at their best means replacing small wear items before they cause downtime or chemical loss. The GD-124 kit bundles the most commonly needed spare parts—14 pieces across 12 distinct components—so technicians can perform a full pump and valve refresh in the field or shop. This kit addresses the root causes of pressure loss, hard pumping action, and leaking connections with genuine B&G components engineered for fit and durability.

How will this kit restore lost pump pressure?

Pressure drop often comes from a degraded plunger cup, brittle gaskets, or weakened valve springs. Installing the included plunger cup, pump tube gasket, packing washers, and valve spring rebuilds the sealing and return actions that create suction and steady delivery. The result is quicker prime times and consistent output across the spray pattern.

• Plunger cup replaces worn seal to regain suction and prevent air ingress
• Packing washers (3 pieces) restore tight shaft sealing under load
• Valve spring renews positive valve closure for stable pressure

Which parts are in the GD-124 and what do they each fix?

This kit contains the key replacement elements that fail most often on Primeline pumps and Extenda-Ban valves. Each piece targets a specific leak or wear point so a single service visit addresses multiple symptoms. Using the correct B&G components reduces the risk of mismatched parts and repeated repairs.

• Plunger cup — seals plunger against pump tube walls
• Pump tube gasket and hose gasket — stop leaks at pump and hose junctions
• Packing washers (3) — ensure shaft and stem sealing
• Pump lock spring & valve spring — restore mechanical return and valve seating
• Check valve — prevents backflow and preserves prime
• NG-146 nylon gasket, soft seat gasket, spreader plate, nozzle gasket — refresh small sealing and mounting points

How does this kit prevent chemical leaks and reduce maintenance frequency?

Leaking seals allow chemical loss and can cause corrosion or internal damage if left unchecked. Replacing all critical gaskets and soft seals at once eliminates multiple tiny leak paths and reduces the chance of consecutive failures. Routine swapouts using the GD-124 protect internal components and extend intervals between major overhauls.

• New seals block common leak locations: pump tube, hose, nozzle, and valve seats
• Genuine parts maintain original tolerances for proper seating and compression
• Comprehensive replacement lowers frequency of emergency repairs

Who is this kit meant for? The GD-124 is built for pest control technicians, property maintenance crews, and professional applicators who rely on B&G Primeline sprayers and Extenda-Ban valves. If you perform routine maintenance or troubleshoot pressure and leak issues, this all-in-one kit supplies the exact spares needed to complete a full pump and valve service quickly. It’s especially valuable for fleet upkeep where minimizing downtime and preserving consistent spray performance are priorities.