Mercruiser lower unit part *Port side insert screen

GLM marine # 21880
OEM 93424-1
Plastic insert screen filters water pump intake water on port side
Mercruiser Tech support Exploded view drawings search by part number or description
For all other lower unit parts, see our lower gearcase drawing page
Starboard side insert screen also available

12822 screw	P/N 12822 Mercruiser insert screen screw 5 units $9.99*
21905 Outdrive gimbal bearing	Heavy duty gimbal bearing for Mercruiser outdrive Compatible with Mercruiser 120/140, 470/485, 165, 888, 225/233, 898/228, 250/260, R, MR, Alpha 1/Gen II, Bravo models manufactured in the United States by GLM Marine. Larger area between seals allows for up to 30% more grease filling and low carbon steel cage allows higher temperature operation also included in the GLM bellows kit P/N 21905 Gimbal bearing OEM 30-862540A3, 30-60794A4, 3853807, 983987
23270 Driven gear outside race shim set	Mercruiser shim kit P/N 23270 Installed under driven gear for Shim kit OEM 15-36178A1 for bearings P/N 21540, 21550 and 21560 replaces OEM 15-36178A1.
90100 Mercruiser tools bearing retainer wrench	GLM aftermarket Mercruiser bearing retainer wrench for MC-1/R/MR/Alpha One/Alpha One Gen 2, Blackhawk, and Bravo. Installs and removes drive shaft bearing retainer for use with the bearing retainer nut P/N 8350 P/N 90100 GLM Marine aftermarket Mercruiser drive shaft bearing retainer wrench 91-17256 $88.99
88010 Mercruiser outdrive water pump and seal kit	Lower unit water pump P/N 88010 and upper - lower gearcase seal kits $119.99 Compatible with models 1 and R (1970 - 1983) Serial numbers 2663442 - 6225576 Includes: P/N 87500 / 26-32511A1 Upper housing seal set P/N 87510 / 26-33144A2 Lower seal set P/N 89840 / 47-89984T4 Impeller P/N 11070 / 28-56654 Key P/N 12410 / 46-96148T1 Housing P/N 12322 / 46-44292A3 Base P/N 12820 / 23-29804T Guide tube P/N 12810 / 48752 Cup P/N 12510 / 32435 Wear plate P/N 31010 / 27-85608-1 Gasket
	GLM Marine Products aftermarket gears for upper gearcase and lower units all models Outdrive forward, pinion and reverse gears for all models including MC-1 / R / MR and Alpha One and Generation 2 compatible with 120/140 4 cylinder, inline 6 cylinder, V6 and 5.0-5.7 liter V8 motors. Upper and lower unit gear sets with bearings and shims, ratios, years and serial numbers. See our application chart for lower and upper units for help with choosing the right one for your model Limited selection of used gears also available.
90190 Mercruiser tool bearing carrier retainer wrench	P/N 90190 Bearing carrier retainer wrench OEM 91-61069T $112.99 Bearing carrier wrench, bearing puller and pinion nut adapter Shift shaft bushing, outdrive bearing race and seal drivers. Mercury outboard and Mercruiser stern drive prop wrench kit Tools are compatible with Alpha 1 and generation 2, Bravo, MR, and Mercruiser outdrives