Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

Image not available
BOSTITCHAir Tool Replacement Parts

BOSTITCH End Cap Assembly: Mfr Part # 9R189707

The BOSTITCH End Cap Assembly, manufacturer part number 9R189707, is an air tool replacement part. This component is identified by SKU 42NJ34 and carries additional reference numbers 36Z448 and LPF21PL.

SKU 3G-OTH-165971

Brand
BOSTITCH
Item
End Cap Assembly: Mfr Part # 9R189707
Category
Air Tool Replacement Parts
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

BOSTITCH
Manufacturer Part Number
9R189707
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

BOSTITCH Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BOSTITCH End Cap Assembly, manufacturer part number 9R189707, is an air tool replacement part. This component is identified by SKU 42NJ34 and carries additional reference numbers 36Z448 and LPF21PL.

Frequently Asked Questions

What is the BOSTITCH End Cap Assembly used for?

The BOSTITCH End Cap Assembly (part 9R189707) is a replacement component for BOSTITCH air tools. It seals the cylinder end, directing compressed air for proper tool cycling. Commonly used in pneumatic nailers and staplers, it restores performance when the original end cap wears or cracks.

What are the specifications of the BOSTITCH End Cap Assembly?

The BOSTITCH End Cap Assembly has manufacturer part number 9R189707 and SKU 42NJ34. It is also referenced as 36Z448 and LPF21PL. This air tool replacement part is designed for BOSTITCH pneumatic tools and is sold as an individual assembly.

Where to buy the BOSTITCH End Cap Assembly worldwide?

You can source the BOSTITCH End Cap Assembly (9R189707) through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to install the BOSTITCH End Cap Assembly?

To install the BOSTITCH End Cap Assembly, first disconnect the air tool from its air supply. Remove the old end cap by unscrewing or unclipping it, then clean the cylinder surface. Place the new assembly (9R189707) and secure it per the tool's manual. Reconnect air and test for leaks.

Used in

Common applications for BOSTITCH
Construction framing — BOSTITCH pneumatic framing nailers (e.g., MCN250) for high-speed nailing of lumber and sheathing.
Woodworking assembly — BOSTITCH finish nailers for trim, molding, and cabinet installation requiring precise fastener placement.
Roofing applications — BOSTITCH coil roofing nailers for attaching shingles and underlayment on residential and commercial roofs.
Industrial packaging — BOSTITCH staplers for sealing corrugated boxes and crates in high-volume shipping environments.
Maintenance repair — BOSTITCH replacement parts (e.g., piston washers, o-ring kits) for servicing pneumatic tools in plant maintenance shops.
Compressor servicing — BOSTITCH air compressor heads (e.g., AB-7161400) for rebuilding or repairing stationary compressor units.

BOSTITCH Products

3G Electric supplies BOSTITCH air tool replacement parts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
BOSTITCH
BOSTITCH
BOSTITCH Assembly End Cap: Mfr Part # 163912, End Cap Assembly, Compatible with Mfr Part # F21PL2. Key specifications — attr948908: 163912; attr948910: 5KNH5; attr948911: F21PL2; attr948916: End Cap Assembly.
BOSTITCH
BOSTITCH
BOSTITCH Cap, End: Mfr Part # 173894, End Cap, Compatible with Mfr Part # F62FN/N52FN/N62FNK-2. Key specifications — attr948908: 173894; attr948911: N52FN; attr948916: End Cap.
BOSTITCH
BOSTITCH
BOSTITCH Bracket End Cap: Mfr Part # 174066, End Cap Bracket. Key specifications — attr948908: 174066; attr948910: 3HZF7; attr948911: N66C-1; attr948916: End Cap Bracket.
BOSTITCH
BOSTITCH
BOSTITCH Magazine Cap: Mfr Part # 9R189733, Cap Magazine, Compatible with Mfr Part # LPF21PL/LPF33PT. Key specifications — attr948908: 9R189733; attr948910: 36Z448; attr948911: LPF21PL; attr948916: Cap Magazine.
BOSTITCH
BOSTITCH
BOSTITCH Cap End: Mfr Part # 175561, End Cap, Compatible with Grainger Part # 3HZF7. Key specifications — attr948908: 175561; attr948910: 3HZF7; attr948911: MCN250; attr948916: End Cap.
BOSTITCH
BOSTITCH
BOSTITCH End Cap: Mfr Part # 108722. Key specifications — attr1067766: 108722; attr1080358: End Cap; attr1067768: BOSTITCH.

More from BOSTITCH

View all BOSTITCH parts
BOSTITCH
BOSTITCH
BOSTITCH Seal, Head Valve: Mfr Part # 9R188849, Head Valve Seal. Key specifications — attr948908: 9R188849; attr948911: N52FN; attr948916: Head Valve Seal.
BOSTITCH
BOSTITCH
BOSTITCH Label Warning: Mfr Part # 158612, Warning Label, Compatible with Mfr Part # 438S2R-1. Key specifications — attr948908: 158612; attr948910: 4YF12; attr948911: 438S2R-1; attr948916: Warning Label.
BOSTITCH
BOSTITCH
BOSTITCH Washer: Mfr Part # 180569, Washer. Key specifications — attr948908: 180569; attr948911: SB1850BN; attr948916: Washer.
BOSTITCH
BOSTITCH
BOSTITCH Spring Check Pawl: Mfr Part # 163878, Check Pawl Spring, Compatible with Mfr Part # F21PL2. Key specifications — attr948908: 163878; attr948910: 5KNH5; attr948911: F21PL2; attr948916: Check Pawl Spring.
BOSTITCH
BOSTITCH
BOSTITCH Assembly Driver/Pist: Mfr Part # 175560, Driver/Piston Assembly. Key specifications — attr948908: 175560; attr948910: 3HZF7; attr948911: MCN250; attr948916: Driver/Piston Assembly.
BOSTITCH
BOSTITCH
BOSTITCH Cap Hook: Mfr Part # 175585, Hook Cap, Compatible with Grainger Part # 36Z450/3HZF7/3HZF8. Key specifications — attr948908: 175585; attr948910: 3HZF7; attr948911: SF150C; attr948916: Hook Cap.
BOSTITCH
BOSTITCH
BOSTITCH Pin Spirol, M4X14MM: Mfr Part # 100263, Spirol Pin, Compatible with Grainger Part # 4YF12. Key specifications — attr948908: 100263; attr948910: 4YF12; attr948911: 438S2R-1; attr948916: Spirol Pin.
BOSTITCH
BOSTITCH
BOSTITCH Plug Manifold, 1/8-2: Mfr Part # 1753, Manifold Plug, Compatible with Grainger Part # 3HZG5. Key specifications — attr948908: 1753; attr948910: 3HZG5; attr948911: SC7; attr948916: Manifold Plug.