- Elektra Records, Crossing Bells and Horn with Electric Train Pass (Bell element only.)
- Hollywoodedge, Air Brake Hiss Truck PE079201
- Hollywoodedge, Air Brake Hiss TruckH PE079501
- Hollywoodedge, Air Horn Blasts Truck PE079701 (Used as Hoot's horn in a high pitch.)
- Hollywoodedge, Bird Canary SingingC PE020201 (Heard once in "Rescue at Rocky Ridge".)
- Hollywoodedge, Boat Or Factory Whis CRT058901 (Heard in "Old Puffer Pete's Tour".)
- Hollywoodedge, Chimpanzee Screams AT050301/Sound Ideas, CHIMPANZEE - EXCITED CALL, ANIMAL, MONKEY, APE 02 (Heard once in "Zephie's Monkey Business".)
- Hollywoodedge, Chimpanzee Screeche PE026201
- Hollywoodedge, Dog St Bernard Whines AT024701 (Heard once in "Koko’s Puppy Training".)
- Hollywoodedge, Dog St Bernard Whines AT024801 (Heard once in "Koko’s Puppy Training".)
- Hollywoodedge, Doppler Horn By LeftT PE079801 (Heard in the title cards of Series 4-onward.)
- Hollywoodedge, Elephant Trumpeting PE024801 (Heard often in "Wilson and the Elephant" and "Wilson's Wacky Tour".)
- Hollywoodedge, Fart 1 Medium Fart Clo PE138901 (Heard once in "Old Puffer Pete's Tour".)
- Hollywoodedge, Firetruck Horn Blast CT061401 (Used as Calley's horn in Series 1-5, and Tai's horn in Series 6.)
- Hollywoodedge, Forest Ambience Bird PE010101
- Hollywoodedge, Forest Mountain Echo BT021001
- Hollywoodedge, Gusts Heavy Cold Wind PE031601/Hollywoodedge, Whistling Wind Stead PE033301 (Heard once in "Chilly Chuggers".)
- Hollywoodedge, Medium Exterior Crow PE140401 (Heard in "The Chugger Championship", and once in "Zephie Ace Reporter".)
- Hollywoodedge, Medium Exterior Crow PE140501 (Heard in "The Chugger Championship" and twice in "Winter Whiteout".)
- Hollywoodedge, Metal Creaks Machine FS015801
- Hollywoodedge, Metal Shovel Hit Dull PE355701
- Hollywoodedge, Morning Park Birds Me PE010501
- Hollywoodedge, Multiple Ferry BoatS PE129701
- Hollywoodedge, Police Wailer Siren PE080801 (Heard once in "Rescue at Rocky Ridge".)
- Hollywoodedge, Rooster Crow Typical AT086301 (Heard once in "Clunky Wilson".)
- Hollywoodedge, Semi Horn Honk Long Sh PE298101 (Used as Jackman's horn in it's normal pitch, and as Zack's in a lower pitch.)
- Hollywoodedge, Single Lamb Bleats CRT011501 (Heard once in "Zephie’s Zoomaround".)
- Hollywoodedge, Train Air Whistle An BFX031101 (Used as Old Puffer Pete's whistle.)
- Hollywoodedge, Train Exterior Persp PE064701
- Hollywoodedge, Train Horn Doppler BFX030301
- Hollywoodedge, Train Horn Freight Tr TE046002
- Hollywoodedge, Train Horn Freight Tr TE046003
- Hollywoodedge, Train Horn Loud Echoe TE046001
- Hollywoodedge, Train Long From Dista PE064401
- Hollywoodedge, Train Whistle BlastT CT071401
- Hollywoodedge, Truck Air Horn Numero PE270701 (Various higher pitches; heard multiple times in "Koko and the Tunnel"; used as Chatsworth's horn.)
- Hollywoodedge, Truck Brakes Brake Sq TE047902
- Hollywoodedge, Warning Buzzer Space PE194501
- Hollywoodedge, Wood Crash Large PE113501 (Heard twice in "The Great Chugger Caper" and once in "Chugatronic Cargo".)
- Hollywoodedge, Wood Crashes Large Tr TE022901
- SKYWALKER, DOOR - HYDRUALIC HATCH OPEN AND CLOSE; HISS WITH PROCESSED WHOOSH (Heard when there is a transition in an episode.)
- SoundDogs, Trains, Steam Train, Steam Train Idle Chuffs
- Sound Ideas, AIRPLANE, JET - MILITARY FIGHTER JET: PASS BY 01
- Sound Ideas, AIRPLANE, JET - MILITARY FIGHTER JET: PASS BY 02
- Sound Ideas, AIRPLANE, JET - MILITARY FIGHTER JET: PASS BY 03
- Sound Ideas, AIRPLANE, JET - MILITARY FIGHTER JET: PASS BY 04
- Sound Ideas, ANIMALS - COWS - MOOING 01
- Sound Ideas, APPLAUSE, CHEERING - INDOOR: LARGE CONVENTION CROWD, AUDIENCE
- Sound Ideas, BALLOON - BALLOON AIR SQUEAK 05 (Heard once in lower pitch in "Bubbly Olwin", and once in a normal pitch in "Famous Emery".)
- Sound Ideas, BIRD, CHICKEN - FUNNY HEN CLUCKS, ANIMAL (Heard once in "Wilson's Smooth Moves".)
- Sound Ideas, BIRD, CROW - COMMON CROW: CALLS, ANIMAL
- Sound Ideas, BIRD, CROW, COMMON - CALLS, ANIMAL
- Sound Ideas, BIRD, JAPANESE QUAIL - CALLING, ANIMAL
- Sound Ideas, BIRD, OWL - CALLING, ANIMAL 01 (Heard once in "Koko on Call".)
- Sound Ideas, BIRD, OWL - CALLING, ANIMAL 02
- Sound Ideas, BELL, RAILROAD - RAILROAD CROSSING SIGNAL BELL: RINGING
- Sound Ideas, CAVERN - EERIE HOLLOW CAVE: VARIOUS ECHOEY NOISES, AMBIENCE (Heard once in "Old Puffer Pete's Tour" and "Eddie Finds Time".)
- Sound Ideas, CHEERING, CROWD - OUTDOOR: SMALL GROUP, AUDIENCE
- Sound Ideas, COUNTRY, DAY - BIRDS, CRICKETS, STEADY BREEZE, AMBIENCE
- Sound Ideas, DOG - PUPPY, YELP, WHINE & BARK, ANIMAL (Heard once in "Koko's Puppy Training".)
- Sound Ideas, ELEPHANT - ELEPHANT TRUMPET, ANIMAL 01
- Sound Ideas, ENGINE, STEAM - TRACTION ENGINE, BLOWS HOOTER
- Sound Ideas, FOREST, NIGHT - NIGHT TIME CRICKETS, OWL, AMBIENCE, ANIMAL, INSECT
- Sound Ideas, HORN, AIR - INTERIOR: SINGLE BLAST, LONG 01 (Modified/processed; used as Hanzo's horn.)
- Sound Ideas, HORN, BOAT - TUG BOAT HORN: ONE LONG AND TWO SHORT BLASTS/Sound Ideas, HORN, BOAT - TUG BOAT HORN: ONE LONG BLAST (Used as Wilson's horn in it's normal pitch, and as Brewster's in a low pitch.)
- Sound Ideas, HUMAN, GURGLE - STOMACH, GRUMBLE, GRUMBLING STOMACH, DIGIFFECTS (Heard once in a low volume in "Old Puffer Pete’s Tour".)
- Sound Ideas, INDUSTRY, HYDRAULIC - ELECTRIC HYDRAULIC MACHINE: UP FULL, FACTORY
- Sound Ideas, LEVERS - LEVER, LARGE: RAILROAD COUPLER LIFT BAR, SINGLE THROW, SLACK, CLOSE, OPEN, THEN OPEN, THEN CLOSE
- Sound Ideas, METAL, JOLT - METAL, JOLT - LARGE, LOW METAL JOLT, FOLEY (Often used as a coupling sound effect.)
- Sound Ideas, METAL, SCRAPE - THREE LONG, ABRASIVE, METAL SCRAPES (2nd variant only, often used for whenever wheels squeal and screech.)
- Sound Ideas, SQUEAK, BRAKES - SQUEAKY BRAKES, SQUEALING (Heard frequently.)
- Sound Ideas, SWAMP, NIGHT - HEAVY FROG AMBIENCE, BIRDS, MARSH
- Sound Ideas, SWITCH - LARGE COMPRESSOR SERVO SWITCH: SINGLE 01
- Sound Ideas, TRACTOR, STEAM - STEAM WHISTLE, SHORT
- Sound Ideas, TRAIN, CROSSING BELL - RAILROAD CROSSING BELL: RINGING 01
- Sound Ideas, TRAIN, DIESEL - DIESEL LOCOMOTIVE ENGINE: START UP, IDLE WITH REVS, SHUT OFF WITH LONG WIND DOWN
- Sound Ideas, TRAIN, DIESEL - TRAIN, DIESEL, ARRIVING WITH HORN, ALARM, DIGIFFECTS
- Sound Ideas, TRAIN, DIESEL - TRAIN, DIESEL, FREIGHT, LONG, PASSING, DIGIFFECTS
- Sound Ideas, TRAIN, HORN - DIESEL LOCOMOTIVE ENGINE: SOUND HORN, LONG (Used as Irving's horn.)
- Sound Ideas, TRAIN, RAILYARD - TRAIN, SWITCHYARD, CARS BEING COUPLED, METAL CRASH, VERSION 2, DIGIFFECTS
- Sound Ideas, TRAIN, STEAM - STEAM TRAIN: ON BOARD ENGINE: STEADY, HEAVY CHUGGING (Used as Olwin's chugging sound.)
- Sound Ideas, TRAIN, STEAM - WHISTLE, MANY BLASTS, CLOSE UP
- Sound Ideas, TRAIN, STEAM - WHISTLE, SINGLE, CLOSE UP 03
- Sound Ideas, TRUCK, FORD 14'BOX - EXTERNAL: REVERSE WARNING BEEPER, SIGNAL, FORD (Used for the jigglometer.)
- Sound Ideas, TRUCK, MACK TRANSPORT - EXTERNAL: AIR HORN, DOUBLE BLAST (Used as Fletch's horn.)
- Sound Ideas, TRUCK, HORN, AIR - SHORT BLOWS, HORNS, TRANSPORT & MACK TRUCKS (Used as Hodge's horn.)
- Sound Ideas, TRUCK, HORN, AIR - TWO BLASTS 01/Sound Ideas, TRUCK, HORN, AIR - TWO BLASTS 02/Sound Ideas, TRUCK, HORN, AIR - ONE BLAST (Used as Dunbar's horn.)
- Sound Ideas, WEATHER - THUNDER CRASH 02 (Heard once in "Wilson and the Wild Wind".)
- Sound Ideas, WHISTLE, STEAM - FACTORY WHISTLE, LARGE FACTORY (Heard once in "First Responder Calley", "Delivery Challenge", "The Extra Mile", "Not From Around Here", "Sleepyhead Koko", "The Zephie Express" and "You for a Day"; used as Vee's wake-up alarm.)
- Sound Ideas, WHISTLE, STEAM - STEAM WHISTLE, THREE SHORT WHISTLES, SHIP, ALARM, DIGIFFECTS (Used as Olwin's whistle.)
- Sound Ideas, WIND - HOWLING AND WHISTLING, WEATHER (Heard once in "Chilly Chuggers".)
- Sound Ideas, WIND - HOWLING HORROR WIND, WEATHER (Heard once in "Eddie Finds Time".)
- Sound Ideas, WIND - SOFT WIND, WEATHER (Heard once in "Chilly Chuggers".)
- Unknown Sound Effects Library, Train Horn 03 (Used as Koko's horn.)
- Unknown Sound Effects Library, Train Horn 04 (Used as Skipper Stu's horn.)
- Unknown Sound Effects Library, Train Horn 10 (Used as Koko's horn in 'Honk Yourself Awake')
- Unknown Sound Effects Library, Train Whistle 13 (Used as Speedy McAllister's whistle.)
- Unknown Sound Effects Library, Truck Air Blast And Pull Away