5 Primer Bulbs For Echo Stihl Roybi, Cub Cadet, Troy Bilt Trimmers - 791-181701

5 Primer Bulbs for Echo Stihl Roybi, Cub Cadet, Troy Bilt Trimmers

This set of 5 primer bulbs replaces OEM part number 791-181701 and primes the fuel system for easier starting on compatible trimmers and other equipment.

Overview

These 5 primer bulbs are direct replacement parts for priming the fuel system on a wide range of outdoor power tools. Compatible with Echo, Stihl, Roybi, Cub Cadet, and Troy Bilt trimmers, these primer bulbs restore reliable, quick starts. Each bulb matches the fit and function of the original 791-181701 primer bulb.

Built For Performance

• Includes 5 primer bulbs for multi-unit or multi-use convenience
• Replaces OEM part number 791-181701 for direct fitment
• Constructed from durable rubber for long service life
• Flexible design conforms to OEM specifications for consistent priming

Fits These Machines

• for Echo trimmers
• for Stihl trimmers
• for Roybi trimmers
• for Cub Cadet trimmers
• for Troy Bilt trimmers

On-The-Job Use

• Use on gas-powered string trimmers for priming before starting
• Works on handheld blowers and edgers that use the same primer bulb design
• Suitable for brush cutters and other outdoor power equipment with bulb primers

Specs At A Glance

Good To Know

Q: Will these primer bulbs fit my trimmer if the model number is not listed? A: These bulbs are designed to replace OEM part 791-181701, which is used on many models. Verify your existing bulb shape and size matches before ordering.

Q: How do I install these primer bulbs? A: Remove the old bulb, insert the new one into the grommet, and press firmly until seated. No special tools are required for most applications.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.