Sale!
Aftermarket GRACO® 178945 Lower Jam Nut, piston (Non-OEM)

Aftermarket GRACO® 178945 Lower Jam Nut, piston (Non-OEM)

Original price was: $30.20.Current price is: $21.14.

SKU: 19-2629 Category:

📍 -- people have viewed this product recently

🚚 Estimated Delivery: Nov 05 - Nov 10

📦 Shipping Policy: Free on orders over $30

🛡️ 30-Day Returns: Free return shipping, no restocking fees

✉️ Customer Support: Dedicated 24/7 assistance

🔒 Guaranteed Safe Checkout

Guaranteed Safe Checkout

Aftermarket GRACO® 178945 Lower Jam Nut, piston (Non-OEM)

Manufacturer: Total Finishing Supplies

Part Number: 536835

Comparable OEM Part Number: 178945

Description: Total Finishing’s part # 19-2629 is a compatible replacement for GRACO® parts 178-945 and 178945 — the lower packing nut used in GRACO® spray equipment. The packing nut threads down on the packing stack to set its compression — it is the adjustment that keeps the throat sealing as packings wear, and on many pumps it doubles as the reservoir for throat seal liquid. Compatible with GRACO® EM 590, GRACO® Fuller OBrien Pro 701, GRACO® GM 3500, GRACO® LineLazer 3500, GRACO® LoPro 1000, GRACO® Super Nova 700 and other compatible equipment.

Common reasons for replacement:

  • Packing compression no longer holding between adjustments
  • Renewed during a full pump repack
  • Stripped or galled threads from repeated adjustment
  • Worn wrench flats after years of service

Manufactured to OEM-equivalent dimensions for proper fit and performance.

Comparable to GRACO® 178-945

NOTES:
GRACO®, PerfomAA™, Merkur™ and Reverse-A-Clean® (RAC) Tip are registered trademarks of GRACO®, and the same company may claim unregistered trademark rights in other words. The advertised parts are intended to fit GRACO®, PerfomAA™, Merkur™ and Reverse-A-Clean® (RAC) Tip spray equipment. They are not, however, manufactured, endorsed, or sponsored by GRACO® or any of their affiliates, and no warranty by GRACO®, or any of their affiliates applies. Total Finishing Solutions, LLC is not affiliated with or sponsored or endorsed by GRACO® and is not one of their authorized distributors.

Reviews

There are no reviews yet.

Be the first to review “Aftermarket GRACO® 178945 Lower Jam Nut, piston (Non-OEM)”

Your email address will not be published. Required fields are marked *

Related products

Policies

Company

Contact

Address: 2746 W Van Buren St, Chicago, 60612, United States

Email: [email protected]

Phone: +1 312-555-0168

Our Guarantees

Secured Payment Methods
🔒 100% Secure SSL Checkout 🚀 Fast & Tracked Shipping 🛡️ 30-Day Money-Back Guarantee

© 2026 bsscoating.com. All rights reserved.

Shopping Cart
Scroll to Top