How can I tell what size chain my chainsaw needs?
For your Remington electric chainsaw model 099178H, you identify the correct chain size by matching three specs: pitch, gauge, and drive link count. The safest way is to read these specs from the guide bar stamping or measure the existing chain, then match them to a compatible replacement such as the chain 91PX050G.
Look for markings on the guide bar (or the old chain packaging). If markings are worn off, measure the chain.
- Pitch: spacing of the chain links (common sizes include 3/8 in and .325 in)
- Gauge: thickness of the drive link that fits the bar groove (common sizes include .043 in, .050 in, .058 in)
- Drive links (DL): the number of drive links on the loop (must match exactly)
- Bar length: measured cutting length; helps narrow options but does not guarantee fit
- Sprocket type: most electric saws use a standard drive sprocket, but pitch still must match
Use a ruler or caliper and the old chain.
| Spec | How to measure | What must match? |
|---|---|---|
| Pitch | Measure center-to-center across 3 rivets, divide by 2 | Must match bar and sprocket |
| Gauge | Measure drive link thickness with calipers | Must match bar groove |
| Drive links | Count every drive link around the loop | Must match exactly |
If pitch, gauge, or drive link count is off, the chain can bind in the bar groove, derail, or fail to oil correctly. Matching the chain specs protects the guide bar, sprocket, and motor, and it improves cutting performance.
When you order, match the replacement chain to the exact specs of the chain currently on your saw. If your old chain is stretched or damaged, use the bar stamping and drive link count as your primary reference, then select a compatible loop like the chain 91PX050G.
Last updated: February 2026
What kind of oil do you put in a Remington chainsaw?
For the Remington electric chainsaw model 099178H, use bar and chain oil in the oil reservoir to lubricate the guide bar and chain during cutting. In a pinch, many owners use SAE 30 (SAE #30) motor oil, but bar and chain oil is the better everyday choice.
- Bar and chain oil: Best protection; it is tacky so it stays on the chain at higher speed.
- SAE 30 motor oil: Common substitute when bar and chain oil is not available.
- Do not use used oil: It carries debris that accelerates wear on the bar and chain.
- Do not run the saw dry: Lack of lubrication quickly overheats the chain and bar.
- Fill the oil reservoir.
- Run the saw pointed at a light surface (cardboard or a stump) for 30 to 60 seconds.
- Look for a light line or mist of oil.
If the chain looks dry or smokes, stop cutting and inspect the oil level and oiling path.
Correct chain lubrication reduces friction and heat, helps the chain cut faster, and extends the life of the bar, sprocket, and the cutting teeth. If your chain is stretched, dull, or damaged, replacing it restores safe cutting performance.
| Item | For model 099178H | What it does |
|---|---|---|
| Chain | Chain 91PX050G | Replaces a worn or damaged cutting chain |
Last updated: February 2026
What is the average lifespan of 099178H?
A Remington electric chainsaw like model 099178H typically lasts 7 to 10 years with normal homeowner use and routine maintenance. Lifespan depends most on chain condition, bar lubrication, keeping the motor vents clean, and avoiding overload cuts.
| Use pattern | What “normal” looks like | Typical lifespan |
|---|---|---|
| Light | Seasonal trimming, small limbs | 10 years |
| Moderate | Regular yard cleanup, mixed cuts | 7 to 10 years |
| Heavy | Frequent long cutting sessions | 5 to 7 years |
- Keep the chain sharp and properly tensioned; a dull chain overheats the motor.
- Maintain steady bar-and-chain oil flow; cutting dry accelerates wear.
- Clean sawdust from the sprocket area and air vents after each use.
- Let the saw do the work; forcing the cut increases current draw and heat.
- Store it dry; moisture leads to corrosion and electrical issues.
On electric chainsaws, performance often comes back with basic wear-part replacement and maintenance.
| Symptom | Common cause | What to check/replace |
|---|---|---|
| Cuts slowly, smokes, or pulls to one side | Dull or damaged chain | Replace the chain 91PX050G |
| Chain stops or binds in the cut | Incorrect tension or poor lubrication | Adjust tension, verify oiling |
| Motor bogs down easily | Dull chain or packed debris | Sharpen/replace chain, clean vents |
A sharp, correctly tensioned chain reduces load on the motor and drive components. That directly lowers heat buildup, which is the main factor that shortens the service life of an electric chainsaw.
Last updated: March 2026
