8 Fairfax St SE
NAPA Auto Parts Genuine Parts Company
8 Fairfax St SE
Leesburg,  VA  20175
(703) 777-2055
Reserve Online Participant
Store Hours
Mon-Fri:7:30 AM-7:00 PM
Sat:8:00 AM-5:00 PM
Sun:9:00 AM-5:00 PM
This store has been geolocated for you.
Looking to get a repair done? Find an AutoCare Center

Muffler, 4.75" Length, 1/2" NPT

Muffler, 4.75" Length, 1/2" NPT

Part #: SME 703651
Line: NAPA Small Engine Parts

This item is currently not at your store, but is available for order. Please call store to verify the specific location and delivery details for this item. Note that additional shipping charges may be required.

Requested quantity is not available. Please update the quantity below.

Features & Benefits

Warranty: Standard : 2 Year Limited on Manufactures Defect in Material or Workmanship


In display package

  • 60100 (2HP) horizontal, 80299, 80300, 81997 (3HP) horizontal, 60000, 80000, 92000
  • 1/2" Male N.P.T Size
  • 4.75"L
  • Backed by Sierra’s Limited Lifetime Warranty.


Brand NAPA
Replaces OE Part # 89966, Clinton 170-159-500, Tecumseh 30911
Standard or Premium Standard
Engine Manufacturer Briggs & Stratton, Clinton, Tecumseh
Muffler Inlet Size 1/2 in. Male Pipe Thread
Engine HP Rating 2 - 3 hp
VMRS Code 043003001
Muffler Dimensions 4.75 in.
Muffler Outlet Size .75 in.
Muffler Thread Size 1/2 in. Male NPT
Fits Engine Model # N, 5S, 6, 6B-F, 6B-HS, 6B-S, 6R, Horizontal, 80299, 80300, 81997, 60000, 80000, 92000

Safety Information

Vehicle Fitment Guide

Product Reviews